preg_split
Took me some time to find how to add a centered aligned footer, here's how:
<?php
// place footer line, centered. 297.5 is exactly half the width of a A4 page
$p->fit_textline($textline, 297.5, 35, " position=center");
?>
CXVII. Fonctions PDF
Introduction
Les fonctions PDF permettent de créer des fichiers PDF en utilisant la bibliothèque PDFlib créée initialement par Thomas Merz et qui est actuellement maintenue par PDFlib GmbH.
La documentation de cette section est uniquement destinée à être une introduction aux fonctions disponibles, et ne doit pas être considérée comme une référence exaustive. Reportez-vous à la documentation incluse dans la distribution de PDFlib pour plus de détails et d'explications. Elle fournit une excellente référence des capacités de PDFlib, et contient la documentation la plus à jour.
Pour commencer, nous vous conseillons de regarder du côté des exemples fournis avec le paquet PDFlib. Ces exemples montrent la création d'un texte simple, de vecteurs ou encore de graphiques, en passant par l'utilisation de fonctions hauts niveaux comme PDI.
Toutes les fonctions de la PDFlib et du module PHP ont des noms et des arguments identiques. Vous aurez à comprendre quelques concepts basiques de PDF et PostScript pour l'utiliser efficacement. Toutes les longueurs et coordonnées sont mesurées en points PostScript. Il y a généralement 72 points PostScript pour faire un pouche (2.54 cm), mais cela dépend de la résolution de sortie. Reportez-vous au manuel de référence PDFlib inclus dans la distribution de PDFlib pour plus de détails sur le système de coordonnées.
Avec la version 6, PDFlib offre une API orientée objet pour PHP 5 en plus de l'API orientée fonctions pour PHP 4. Voici les plus grandes différences :
En PHP 4, tout d'abord, une ressource PDF doit être récupérée avec l'appel à une fonction comme
$p = PDF_new();
Cette ressource PDF est utilisée en tant que premier paramètre dans tous les prochains appels de fonctions, comme dans
PDF_begin_document($p, "", "").
En PHP 5, un objet PDFlib est créé plutôt avec
$p = new PDFlib().
Cet objet offre toutes les fonctions de l'API PDFlib en tant que méthodes, par exemple avec
$p->begin_document("", "").
En plus, les exceptions ont été introduites en PHP 5 qui sont supportées dans la version 6 ou supérieure de la PDFlib.
Lisez les exemples ci-dessous pour plus d'informations.
Note : Si vous êtes intéressé par des alternatives gratuites pour générer des PDF, sans passer par des bibliothèques PDF, reportez-vous à cette entrée de la FAQ.
Pré-requis
PDFlib Lite est disponible en tant qu'open source. Cependant, la license de PDFlib Lite permet l'utilisation libre sous certaines conditions. PDFlib Lite supporte une partie des fonctionnalités de PDFlib ; reportez-vous au site web de PDFlib pour plus de détails. La version complète de PDFlib est disponible en téléchargement sur http://www.pdflib.com/products/pdflib/index.html, mais impose l'achat d'une license pour l'utiliser commercialement.
Problèmes avec les anciennes versions de PDFlib
Toutes les versions de PHP 4 éditées après le 9 Mars 2000 ne suportent pas les versions de PDFlib plus anciennes que PDFlib 3.0.
PDFlib 4.0 et plus récent est supporté par PHP 4.3 et plus récent.
Installation
Cette extension PECL n'est pas intégrée à PHP. Des informations sur l'installation de ces extensions PECL peuvent être trouvées dans le chapitre du manuel intitulé Installation des extensions PECL. D'autres informations comme les notes sur les nouvelles versions, les téléchargements, les sources des fichiers, les informations concernant les mainteneurs ainsi qu'un CHANGELOG, peuvent être trouvées ici : http://pecl.php.net/package/pdflib.
Pour inclure le support de la PDFlib dans votre PHP < 4.3.9, il faut compiler PHP avec l'option --with-pdflib[=DIR]. DIR est le dossier d'installation de PDFlib et, par défaut, il vaut /usr/local.
Types de ressources
Cette extension ne définit aucune ressource.
Remarque sur les fonctions obsolètes de la PDFlib
Depuis PHP 4.0.5, l'extension PHP pour la PDFlib est officiellement supportée par PDFlib GmbH. Cela signifie que toutes les fonctions décrites dans le manuel de référence de la PDFlib (PDFlib V3.0 ou supérieur) sont supportées par PHP 4 avec exactement la même signification et les mêmes paramètres. Cepdentant, avec la PDFlib V5.0.4 ou supérieure, tous les paramètres doivent être spécifiés. Pour des raisons de compatibilité, l'implémentation de la PDFlib supporte la plupart des fonctions obsolètes, mais elles doivent être remplacées par leur nouvelle version. PDFlib GmbH ne fournira aucun support pour les problèmes survenant lors de l'utilisation de ces fonctions obsolètes. La documentation de cette section indique les anciennes fonctions comme "obsolètes" et donne la fonction qui doit être utilisée à la place.
Exemples
La plupart des fonctions sont simples d'emploi. Le plus difficile est probablement de créer un fichier PDF simple. L'exemple suivant devrait vous mettre sur les rails. Il est développé en PHP 4 et crée un fichier hello.pdf d'une page. Il définit quelques champs de contenu et charge la police Helvetica-Bold et affiche le texte "Bonjour le monde (dit PHP) !".
L'exemple suivant vient avec la distribution de la PDFlib pour PHP 5. Il utilise le nouveau gestionnaire d'exceptions ainsi que les nouvelles fonctionnalités objets disponible en PHP 5. Il crée le fichier hello.pdf d'une seule page. Il définit quelques champs de contenu et charge la police Helvetica-Bold et affiche le texte "Bonjour le monde (dit PHP) !".
Exemple 2. Exemple "Bonjour le monde !" avec PDFlib en PHP 5
|
- Table des matières
- PDF_activate_item -- Active un élément de structure ou un autre élément de contenu
- PDF_add_annotation -- [Obsolète] Ajoute une annotation
- PDF_add_bookmark -- [Obsolète] Ajoute un signet dans la page courante
- PDF_add_launchlink -- [Obsolète] Ajoute une annotation de lancement dans la page PDF courante
- PDF_add_locallink -- [Obsolète] Ajoute une annotation de lien dans la page PDF courante
- PDF_add_nameddest -- Crée une destination nommée
- PDF_add_note -- [Obsolète] Ajoute une annotation dans la page PDF courante
- PDF_add_outline -- [Obsolète] Ajoute un signet dans la page courante
- PDF_add_pdflink -- [Obsolète] Ajoute une annotation sur un lien vers un fichier dans la page PDF courante
- PDF_add_thumbnail -- [Obsolète] Ajoute une miniature sur la page PDF courante
- PDF_add_weblink -- [Obsolète] Ajoute un lien web sur la page PDF courante
- PDF_arc -- Dessine un arc de cercle PDF dans le sens anti-horaire
- PDF_arcn -- Dessine un arc de cercle dans le sens horaire
- PDF_attach_file -- [Obsolète] Ajoute un fichier attaché à la page PDF
- PDF_begin_document -- Crée un nouveau fichier PDF
- PDF_begin_font -- Commence une définition de police de type 3
- PDF_begin_glyph -- Commence une définition de glyphe pour les polices de tye 3
- PDF_begin_item -- Ouvre un élément de structure ou un autre élément de contenu
- PDF_begin_layer -- Commence une interface
- PDF_begin_page_ext -- Commence une nouvelle page
- PDF_begin_page -- [Obsolète] Initialise une nouvelle page de document PDF
- PDF_begin_pattern -- Initialise un nouveau pattern PDF
- PDF_begin_template -- Initialise un nouveau template PDF
- PDF_circle -- Dessine un cercle dans un document PDF
- PDF_clip -- Modifie le chemin de clipping PDF
- PDF_close_image -- Ferme une image dans un document PDF
- PDF_close_pdi_page -- Ferme la page PDF
- PDF_close_pdi -- Ferme le fichier PDF d'entrée
- PDF_close -- [Obsolète] Ferme le fichier PDF
- PDF_closepath_fill_stroke -- Termine le chemin, dessine les bords et remplit la forme
- PDF_closepath_stroke -- Termine le chemin et dessine les bords
- PDF_closepath -- Termine le chemin PDF courant
- PDF_concat -- Concatène une matrice avec le CTM
- PDF_continue_text -- Affiche du texte à la prochaine ligne PDF
- PDF_create_action -- Crée une action pour des objets ou des événements
- PDF_create_annotation -- Crée une annotation rectangulaire
- PDF_create_bookmark -- Crée un signet
- PDF_create_field -- Crée un champ de formulaire
- PDF_create_fieldgroup -- Crée un groupe de champs dans un formulaire
- PDF_create_gstate -- Crée un objet graphique
- PDF_create_pvf -- Crée un fichier PDFlib virtuel
- PDF_create_textflow -- Crée un objet de flux de texte
- PDF_curveto -- Dessine une courbe de Bezier
- PDF_define_layer -- Crée une définition d'interface
- PDF_delete_pvf -- Efface un fichier virtuel PDFlib
- PDF_delete_textflow -- Efface un objet de flux de texte
- PDF_delete -- Efface un objet PDF
- PDF_encoding_set_char -- Ajoute un nom de glyphe et/ou une valeur Unicode
- PDF_end_document -- Ferme un fichier PDF
- PDF_end_font -- Termine une définition de police de type 3
- PDF_end_glyph -- Termine la définition d'un glyphe pour les polices de type 3
- PDF_end_item -- Ferme la structure d'un élément ou un autre élément de contenu
- PDF_end_layer -- Désactive toutes les interfaces actives
- PDF_end_page_ext -- Termine une page
- PDF_end_page -- Termine la page PDF courante
- PDF_end_pattern -- Termine le pattern PDF
- PDF_end_template -- Termine le template PDF
- PDF_endpath -- Termine le chemin courant
- PDF_fill_imageblock -- Remplit un bloc d'image avec des données variables
- PDF_fill_pdfblock -- Remplit un bloc de contenu avec des données variables
- PDF_fill_stroke -- Remplit et passe le pinceau sur le chemin PDF courant
- PDF_fill_textblock -- Remplit un bloc de texte avec des données variables
- PDF_fill -- Remplit le chemin PDF courant avec la couleur courante
- PDF_findfont -- [Obsolète] Prépare une police pour utilisation ultérieure
- PDF_fit_image -- Place une image ou un template
- PDF_fit_pdi_page -- Place une page PDF importée
- PDF_fit_textflow -- Formate un flux de texte dans un espace rectangulaire
- PDF_fit_textline -- Place un simple ligne de texte
- PDF_get_apiname -- Récupère le nom d'une fonction de l'API qui a échouée
- PDF_get_buffer -- Lit le tampon contenant le fichier PDF généré
- PDF_get_errmsg -- Récupère le texte d'une erreur
- PDF_get_errnum -- Récupère un numéro d'erreur
- PDF_get_font -- [Obsolète] Charge une police
- PDF_get_fontname -- [Obsolète] Lit le nom de la police
- PDF_get_fontsize -- [Obsolète] Gère les polices
- PDF_get_image_height -- [Obsolète] Retourne la hauteur d'une image
- PDF_get_image_width -- [Obsolète] Retourne la largeur d'une image
- PDF_get_majorversion -- [Obsolète] Retourne le numéro de version majeur de PDFlib
- PDF_get_minorversion -- [Obsolète] Retourne le numéro de version mineure de PDFlib
- PDF_get_parameter -- Lit certains paramètres
- PDF_get_pdi_parameter -- Lit des paramètres textuels dans le document PDI
- PDF_get_pdi_value -- Lit des paramètres numériques dans le document PDF d'entrée
- PDF_get_value -- Lit certains paramètres numériques
- PDF_info_textflow -- Récupère le statut d'un flux de texte
- PDF_initgraphics -- Remet à zéro l'environnement graphique PDF
- PDF_lineto -- Dessine une ligne PDF
- PDF_load_font -- Cherche et prépare une police
- PDF_load_iccprofile -- Cherche et prépare un profile ICC
- PDF_load_image -- Ouvre un fichier image
- PDF_makespotcolor -- Place un point de couleur PDF
- PDF_moveto -- Place le point courant PDF
- PDF_new -- Crée un nouvel objet PDF
- PDF_open_ccitt -- [Obsolète] Ouvre une image contenant des données brutes CCITT
- PDF_open_file -- [Obsolète] Ouvre un nouveau fichier PDF
- PDF_open_gif -- [Obsolète] Ouvre une image GIF
- PDF_open_image_file -- [Obsolète] Lit une image depuis un fichier
- PDF_open_image -- [Obsolète] Ouvre une image
- PDF_open_jpeg -- [Obsolète] Ouvre une image JPEG
- PDF_open_memory_image -- [Non supporté] Ouvre une image créée en mémoire par PHP
- PDF_open_pdi_page -- Prépare une page
- PDF_open_pdi -- Ouvre un fichier PDF
- PDF_open_tiff -- [Obsolète] Ouvre une image TIFF
- PDF_place_image -- [Obsolète] Place une image dans la page
- PDF_place_pdi_page -- [Obsolète] Place une page dans le document
- PDF_process_pdi -- Traite un document PDF importé
- PDF_rect -- Dessine un rectangle
- PDF_restore -- Rétablit l'ancien environnement graphique PDF
- PDF_resume_page -- Réouvre une page
- PDF_rotate -- Configure la rotation
- PDF_save -- Sauve l'environnement graphique courant
- PDF_scale -- Configure l'échelle du document
- PDF_set_border_color -- [Obsolète] Configure la couleur des bords autour des liens et annotations
- PDF_set_border_dash -- [Obsolète] Configure le style des lignes autour des liens des annotations
- PDF_set_border_style -- [Obsolète] Choisit le style de bord autour des liens et annotations
- PDF_set_char_spacing -- [Obsolète] Configure l'espacement des caractères
- PDF_set_duration -- [Obsolète] Configure la durée entre deux pages
- PDF_set_gstate -- Active un objet graphique
- PDF_set_horiz_scaling -- [Obsolète] Configure l'échelle horizontale du texte
- PDF_set_info_author -- [Obsolète] Remplit le champ d'auteur du document
- PDF_set_info_creator -- [Obsolète] Remplit le champ de créateur du document
- PDF_set_info_keywords -- [Obsolète] Remplit le champ de mots-clés du document
- PDF_set_info_subject -- [Obsolète] Remplit le champ de sujet du document
- PDF_set_info_title -- [Obsolète] Remplit le champ de titre du document
- PDF_set_info -- Remplit un champ de l'en-tête de document PDF
- PDF_set_layer_dependency -- Définit les liens entre les interfaces
- PDF_set_leading -- [Obsolète] Configure la distance entre deux lignes de texte
- PDF_set_parameter -- Modifie certains paramètres
- PDF_set_text_matrix -- [Obsolète] Configure la matrice de texte
- PDF_set_text_pos -- Modifie la position du texte
- PDF_set_text_rendering -- [Obsolète] Détermine le rendu du texte
- PDF_set_text_rise -- [Obsolète] Configure l'élévation de texte
- PDF_set_value -- Modifie certains paramètres numériques
- PDF_set_word_spacing -- [Obsolète] Configure l'espace entre deux mots
- PDF_setcolor -- Configure la couleur de dessin et de remplissage
- PDF_setdash -- Configure le mode de pointillé
- PDF_setdashpattern -- Définit un modèle de masque
- PDF_setflat -- Configure la position à plat (flatness)
- PDF_setfont -- Configure la police courante
- PDF_setgray_fill -- [Obsolète] Configure la couleur de remplissage à un niveau de gris
- PDF_setgray_stroke -- [Obsolète] Configure la couleur de dessin à un niveau de gris
- PDF_setgray -- [Obsolète] Configure la couleur de dessin et de remplissage à un niveau de gris
- PDF_setlinecap -- Configure le paramètre de linecap
- PDF_setlinejoin -- Configure le paramètre de linejoin
- PDF_setlinewidth -- Configure la largeur de ligne
- PDF_setmatrix -- Configure la matrice de transformation
- PDF_setmiterlimit -- Configure la "miter limit"
- PDF_setpolydash -- [Obsolète] Configure des pointillés complexes
- PDF_setrgbcolor_fill -- [Obsolète] Choisit la couleur utilisée pour le remplissage
- PDF_setrgbcolor_stroke -- [Obsolète] Choisit la couleur utilisée pour le dessin
- PDF_setrgbcolor -- [Obsolète] Choisit la couleur rgb de remplissage et de dessin
- PDF_shading_pattern -- Définit un masque d'ombrage
- PDF_shading -- Définit un dégradé
- PDF_shfill -- Remplit un espace avec un degradé
- PDF_show_boxed -- [Obsolète] Affiche le texte dans un cadre
- PDF_show_xy -- Affiche un texte à une position donnée
- PDF_show -- Affiche le texte à la position courante
- PDF_skew -- Incline le système de coordonnées
- PDF_stringwidth -- Retourne la largeur d'un texte avec la police courante
- PDF_stroke -- Dessine la ligne le long du chemin
- PDF_suspend_page -- Suspend une page
- PDF_translate -- Effectue une translation de l'origine du système de coordonnées
- PDF_utf16_to_utf8 -- Convertit une chaîne UTF-16 en UTF-8
- PDF_utf8_to_utf16 -- Convertit une chaîne UTF-8 en UTF-16
add a note
User Contributed Notes
Fonctions PDF
sander at alternet dot nl
23-Aug-2010 02:42
Janvarev from GMail.com
08-Aug-2009 02:38
Hi,
there is some more fix from luc pdf2text function. It really works at my tasks.
Two fixes:
1) Different platforms set different characters after start "stream" text, for example: "stream\n", "stream\r", "stream\r\n". So, we detect it first.
2) Some non-text blocks are detected as text, so we added a function "FilterNonText".
<?php
function handleV2($data){
// try detecting \n, \r or \r\n variation
$tmp = strpos($data, "stream");
$end_stream_delimiter = substr($data, $tmp+6, 2);
if($end_stream_delimiter != "\r\n") {
$end_stream_delimiter = substr($end_stream_delimiter, 0, 1);
}
//echo bin2hex($end_stream_delimiter); // - debug information
// grab objects and then grab their contents (chunks)
$a_obj = getDataArray($data,"obj","endobj");
foreach($a_obj as $obj){
$a_filter = getDataArray($obj,"<<",">>");
if (is_array($a_filter)){
$j++;
$a_chunks[$j]["filter"] = $a_filter[0];
$a_data = getDataArray($obj,"stream".
$end_stream_delimiter,"endstream");
if (is_array($a_data)){
$a_chunks[$j]["data"] = substr($a_data[0],
strlen("stream".$end_stream_delimiter),
strlen($a_data[0])-
strlen("stream".$end_stream_delimiter)-strlen("endstream"));
}
}
}
// decode the chunks
foreach($a_chunks as $chunk){
// look at each chunk and decide how to decode it - by looking at the contents of the filter
$a_filter = split("/",$chunk["filter"]);
if ($chunk["data"]!=""){
// look at the filter to find out which encoding has been used
if (substr($chunk["filter"],"FlateDecode")!==false){
$data =@ gzuncompress($chunk["data"]);
if (trim($data)!=""){
// CHANGED HERE, before: $result_data .= ps2txt($data);
$result_data .= FilterNonText(PS2Text_New($data));
} else {
//$result_data .= "x";
}
}
}
}
return $result_data;
}
function FilterNonText($data) {
for($i=1;$i<9;$i++) {
if(strpos($data, chr($i)) !== false) {
return ""; // not text, something strange
}
}
return $data;
}
?>
Warning: this is only a patch to "luc at phpt dot org" code. You must use his solution first, then replace function with this patch.
bolyde at gmail dot com
12-Apr-2009 12:27
Hi,
To find the page number of a PDF File, i find this :
<?php
public function getNumPagesInPDF(array $arguments = array())
{
@list($PDFPath) = $arguments;
$stream = @fopen($PDFPath, "r");
$PDFContent = @fread ($stream, filesize($PDFPath));
if(!$stream || !$PDFContent)
return false;
$firstValue = 0;
$secondValue = 0;
if(preg_match("/\/N\s+([0-9]+)/", $PDFContent, $matches)) {
$firstValue = $matches[1];
}
if(preg_match_all("/\/Count\s+([0-9]+)/s", $PDFContent, $matches))
{
$secondValue = max($matches[1]);
}
return (($secondValue != 0) ? $secondValue : max($firstValue, $secondValue));
}
?>
bondo2 at bondo2 dot info
09-Oct-2008 02:20
<?php
//getting new instance
$pdfFile = new_pdf();
PDF_open_file($pdfFile, " ");
//document info
pdf_set_info($pdfFile, "Auther", "Ahmed Elbshry");
pdf_set_info($pdfFile, "Creator", "Ahmed Elbshry");
pdf_set_info($pdfFile, "Title", "PDFlib");
pdf_set_info($pdfFile, "Subject", "Using PDFlib");
//starting our page and define the width and highet of the document
pdf_begin_page($pdfFile, 595, 842);
//check if Arial font is found, or exit
if($font = PDF_findfont($pdfFile, "Arial", "winansi", 1)) {
PDF_setfont($pdfFile, $font, 12);
} else {
echo ("Font Not Found!");
PDF_end_page($pdfFile);
PDF_close($pdfFile);
PDF_delete($pdfFile);
exit();
}
//start writing from the point 50,780
PDF_show_xy($pdfFile, "This Text In Arial Font", 50, 780);
PDF_end_page($pdfFile);
PDF_close($pdfFile);
//store the pdf document in $pdf
$pdf = PDF_get_buffer($pdfFile);
//get the len to tell the browser about it
$pdflen = strlen($pdfFile);
//telling the browser about the pdf document
header("Content-type: application/pdf");
header("Content-length: $pdflen");
header("Content-Disposition: inline; filename=phpMade.pdf");
//output the document
print($pdf);
//delete the object
PDF_delete($pdfFile);
?>
SID TRIVEDI
20-Jan-2008 06:16
/*
Folks, There is an excellent tutorial from Rasmus Lerdorf available at (It does not support I.E.)
http://talks.php.net/show/osconpdf/
Where PHP Mastermind Guru (Father) explained nicely about text, fonts, images and their attributes with working snippets.
Another tutorial can be found at
www.devshed.com/c/a/PHP/Building-PDF-Documents-with-PHP-5
Hence following is the various size of PDF Document.
Origin is at the lower left and the basic unit is the DTP pt.
1 pt = 1/72 inch = 0.35277777778 mm
Some common page sizes
Format Width Height
US-Letter 612 792
US-Legal 612 1008
US-Ledger 1224 792
11x17 792 1224
A0 2380 3368
A1 1684 2380
A2 1190 1684
A3 842 1190
A4 595 842
A5 421 595
A6 297 421
B5 501 709
*/
info at tecnick dot com
10-Jan-2008 12:54
For those of us that do not want to pay for a commercial license to use PDFlib I suggest TCPDF:
http://tcpdf.sf.net
TCPDF is an Open Source PHP class for generating PDF files on-the-fly without requiring external extensions. This class is already adopted by a large number of php projects such as phpMyAdmin, Drupal, Joomla, Xoops, TCExam, etc.
Starting from 2.1 version TCPDF supports UTF-8 Unicode and bidirectional languages such as Arabic and Hebrew.
Ken McColl
21-Nov-2007 05:06
To get this to work on Windows do not use escapeshellcmd()
From online help:
Following characters are preceded by a backslash: #&;`|*?~<>^()[]{}$\, \x0A and \xFF. ' and " are escaped only if they are not paired. In Windows, all these characters plus % are replaced by a space instead.
So you are probably passing duff paths to pdf2text.exe
Removing escapeshellcmd worked for me. Just make darned sure you are in control of what is being passed through to your system call.
kangaroo232002 at yahoo dot co dot uk
18-Nov-2007 12:25
To extend alex's example earlier, you can use a couple of switches inside the pdf doc to give you the total number of pages, without using any ext. I would have added the whole code, however the site keeps on saying "line is too long... yadayada".
Open the doc using fopen("$file", "rb"); (for reading)
Test the first approx 1000b for the following regex
<?php
if(preg_match("/\/N\s+([0-9]+)/", $contents, $found)) {
return $found[1];
}
?>
If that doesn't return anything, you have to read the rest of the file:
<?php
preg_match_all("/\/Type\s*\/Pages\s*\/Kids\s+
\[.*?\]\s*\/Count\s+([0-9]+)/");
?>
This may return more than one, so look through for the highest value, which is the total number of pages in your doc.
Jonathon Hibbard
05-Nov-2007 03:37
The other issue with DOMpdf is that it has some pretty painful flaws.
You have to supply full paths to everything (images, includes, javascript files, etc). And boy, do i mean everything.
Even then, it is not 100% sound. If you have complex sites, it cannot handle it. It instead breaks the design and only provides you with about a million broken images.
Don't get me wrong, it's GREAT for use with lower-end more simple sites, but if you have a site that say, has a javascript navigation, flash, and a bunch of container divs, it's really not going to do the job.
The above library seems to be the best fit, as about the only way to get high-end sites to work is just to manually write it out yourself using the functions above.
Sorry to bust anyone's bubble. Good luck.
taufiq at simplybuzz dot com
23-Oct-2007 01:13
There is XPDF Win32 binary package at SourceForge for pdftotext purpose that works.
I've tried php codes below but didn't work.
praokean at yahoo dot com
22-Aug-2007 05:08
domPDF is not so great PDF creator becouse don't support foreign charachters.
Sam from dogmaConsult.de
15-Aug-2007 02:00
I seriously tried to get PDF parsing to work to use it in the indexing for fulltext search for a document management. But none of the pdf2text functions below worked for my test cases (among them an openoffice generated pdf file and a file generated by fpdf).
But I found a REALLY WORKING SOLUTION! On linux systems, install the XPDF package. It comes with a tool called pdftotext. Use php code similar to the following to get the text content of your pdf files:
<?php
$file = "test.pdf";
$outpath = preg_replace("/\.pdf$/", "", $file).".txt";
system("pdftotext ".escapeshellcmd($file), $ret);
if ($ret == 0)
{
$value = file_get_contents($outpath);
unlink($outpath);
print $value;
}
if ($ret == 127)
print "Could not find pdftotext tool.";
if ($ret == 1)
print "Could not find pdf file.";
?>
The solution works on all test cases and is much more powerful than any of the previous pure php functions posted here, although only available on linux.
tatlar at yahoo dot com
14-Aug-2007 04:49
http://www.digitaljunkies.ca/dompdf/index.php
PHP5 class that converts HTML to PDF. From the website:
"At its heart, dompdf is (mostly) CSS2.1 compliant HTML layout and rendering engine written in PHP. It is a style-driven renderer: it will download and read external stylesheets, inline style tags, and the style attributes of individual HTML elements. It also supports most presentational HTML attributes."
david at metabin
19-Jul-2007 04:19
Easiest way to get the text of a pdf is to install xpdf (on redhat yum -y install xpdf)
then run xpdftotext your.pdf - which will then generate your.txt.
jkndrkn at gmail dot com
03-May-2007 10:51
For those of us that do not want to pay for a commercial license to use PDFlib in a closed-source project, there are at least two good alternatives: FPDF and TCPDF
http://www.fpdf.org/
PHP4 and PHP5 support
http://sourceforge.net/projects/pdf-php
PHP5 support only
luc at phpt dot org
29-Mar-2007 09:09
I am trying to extract the text from PDF files and use it to feed a search engine (Intranet tool). I tried several functions "PDF2TXT" posted below, but not they do not produce the expected result. At least, all words need to be separated by spaces (then used as keywords), and the "junk" codes removed (for example: binary data, pictures...). I start modifying the interesting function posted by Swen, and here is the my current version that starts to work quite well (with PDF version 1.2). Sorry for having a quite different style of programming. Luc
<?php
// Patch for pdf2txt() posted Sven Schuberth
// Add/replace following code (cannot post full program, size limitation)
// handles the verson 1.2
// New version of handleV2($data), only one line changed
function handleV2($data){
// grab objects and then grab their contents (chunks)
$a_obj = getDataArray($data,"obj","endobj");
foreach($a_obj as $obj){
$a_filter = getDataArray($obj,"<<",">>");
if (is_array($a_filter)){
$j++;
$a_chunks[$j]["filter"] = $a_filter[0];
$a_data = getDataArray($obj,"stream\r\n","endstream");
if (is_array($a_data)){
$a_chunks[$j]["data"] = substr($a_data[0],
strlen("stream\r\n"),
strlen($a_data[0])-strlen("stream\r\n")-strlen("endstream"));
}
}
}
// decode the chunks
foreach($a_chunks as $chunk){
// look at each chunk and decide how to decode it - by looking at the contents of the filter
$a_filter = split("/",$chunk["filter"]);
if ($chunk["data"]!=""){
// look at the filter to find out which encoding has been used
if (substr($chunk["filter"],"FlateDecode")!==false){
$data =@ gzuncompress($chunk["data"]);
if (trim($data)!=""){
// CHANGED HERE, before: $result_data .= ps2txt($data);
$result_data .= PS2Text_New($data);
} else {
//$result_data .= "x";
}
}
}
}
return $result_data;
}
// New function - Extract text from PS codes
function ExtractPSTextElement($SourceString)
{
$CurStartPos = 0;
while (($CurStartText = strpos($SourceString, '(', $CurStartPos)) !== FALSE)
{
// New text element found
if ($CurStartText - $CurStartPos > 8) $Spacing = ' ';
else {
$SpacingSize = substr($SourceString, $CurStartPos, $CurStartText - $CurStartPos);
if ($SpacingSize < -25) $Spacing = ' '; else $Spacing = '';
}
$CurStartText++;
$StartSearchEnd = $CurStartText;
while (($CurStartPos = strpos($SourceString, ')', $StartSearchEnd)) !== FALSE)
{
if (substr($SourceString, $CurStartPos - 1, 1) != '\\') break;
$StartSearchEnd = $CurStartPos + 1;
}
if ($CurStartPos === FALSE) break; // something wrong happened
// Remove ending '-'
if (substr($Result, -1, 1) == '-')
{
$Spacing = '';
$Result = substr($Result, 0, -1);
}
// Add to result
$Result .= $Spacing . substr($SourceString, $CurStartText, $CurStartPos - $CurStartText);
$CurStartPos++;
}
// Add line breaks (otherwise, result is one big line...)
return $Result . "\n";
}
// Global table for codes replacement
$TCodeReplace = array ('\(' => '(', '\)' => ')');
// New function, replacing old "pd2txt" function
function PS2Text_New($PS_Data)
{
global $TCodeReplace;
// Catch up some codes
if (ord($PS_Data[0]) < 10) return '';
if (substr($PS_Data, 0, 8) == '/CIDInit') return '';
// Some text inside (...) can be found outside the [...] sets, then ignored
// => disable the processing of [...] is the easiest solution
$Result = ExtractPSTextElement($PS_Data);
// echo "Code=$PS_Data\nRES=$Result\n\n";
// Remove/translate some codes
return strtr($Result, $TCodeReplace);
}
?>
Sven.Schuberth(at)gmx.de
28-Mar-2007 10:38
I've improved the codesnipped for the pdf2txt version 1.2.
Now its possible the translate pdf version >1.2 into plain text.
Sven
<?php
// Function : pdf2txt()
// Arguments : $filename - Filename of the PDF you want to extract
// Description : Reads a pdf file, extracts data streams, and manages
// their translation to plain text - returning the plain
// text at the end
// Authors : Jonathan Beckett, 2005-05-02
// : Sven Schuberth, 2007-03-29
function pdf2txt($filename){
$data = getFileData($filename);
$s=strpos($data,"%")+1;
$version=substr($data,$s,strpos($data,"%",$s)-1);
if(substr_count($version,"PDF-1.2")==0)
return handleV3($data);
else
return handleV2($data);
}
// handles the verson 1.2
function handleV2($data){
// grab objects and then grab their contents (chunks)
$a_obj = getDataArray($data,"obj","endobj");
foreach($a_obj as $obj){
$a_filter = getDataArray($obj,"<<",">>");
if (is_array($a_filter)){
$j++;
$a_chunks[$j]["filter"] = $a_filter[0];
$a_data = getDataArray($obj,"stream\r\n","endstream");
if (is_array($a_data)){
$a_chunks[$j]["data"] = substr($a_data[0],
strlen("stream\r\n"),
strlen($a_data[0])-strlen("stream\r\n")-strlen("endstream"));
}
}
}
// decode the chunks
foreach($a_chunks as $chunk){
// look at each chunk and decide how to decode it - by looking at the contents of the filter
$a_filter = split("/",$chunk["filter"]);
if ($chunk["data"]!=""){
// look at the filter to find out which encoding has been used
if (substr($chunk["filter"],"FlateDecode")!==false){
$data =@ gzuncompress($chunk["data"]);
if (trim($data)!=""){
$result_data .= ps2txt($data);
} else {
//$result_data .= "x";
}
}
}
}
return $result_data;
}
//handles versions >1.2
function handleV3($data){
// grab objects and then grab their contents (chunks)
$a_obj = getDataArray($data,"obj","endobj");
$result_data="";
foreach($a_obj as $obj){
//check if it a string
if(substr_count($obj,"/GS1")>0){
//the strings are between ( and )
preg_match_all("|\((.*?)\)|",$obj,$field,PREG_SET_ORDER);
if(is_array($field))
foreach($field as $data)
$result_data.=$data[1];
}
}
return $result_data;
}
function ps2txt($ps_data){
$result = "";
$a_data = getDataArray($ps_data,"[","]");
if (is_array($a_data)){
foreach ($a_data as $ps_text){
$a_text = getDataArray($ps_text,"(",")");
if (is_array($a_text)){
foreach ($a_text as $text){
$result .= substr($text,1,strlen($text)-2);
}
}
}
} else {
// the data may just be in raw format (outside of [] tags)
$a_text = getDataArray($ps_data,"(",")");
if (is_array($a_text)){
foreach ($a_text as $text){
$result .= substr($text,1,strlen($text)-2);
}
}
}
return $result;
}
function getFileData($filename){
$handle = fopen($filename,"rb");
$data = fread($handle, filesize($filename));
fclose($handle);
return $data;
}
function getDataArray($data,$start_word,$end_word){
$start = 0;
$end = 0;
unset($a_result);
while ($start!==false && $end!==false){
$start = strpos($data,$start_word,$end);
if ($start!==false){
$end = strpos($data,$end_word,$start);
if ($end!==false){
// data is between start and end
$a_result[] = substr($data,$start,$end-$start+strlen($end_word));
}
}
}
return $a_result;
}
?>
brendandonhue at comcast dot net
22-Aug-2006 08:35
Here is a function to test whether a file is a PDF without using any external library.
<?php
define('PDF_MAGIC', "\\x25\\x50\\x44\\x46\\x2D");
function is_pdf($filename) {
return (file_get_contents($filename, false, null, 0, strlen(PDF_MAGIC)) === PDF_MAGIC) ? true : false;
}
?>
It's not checking if the whole file is valid, just if the correct header is present at the beginning of the file.
MAGnUm at magnumhome dot servehttp.com
17-Jul-2006 02:01
domPDF is also a great PDF creation interface. it basically converts your code to CSS and then builds the PDF from that with the absolute positions, and what not...
spingary at yahoo dot com
12-Jan-2006 12:55
I was having trouble with streaming inline PDf's using PHP 5.0.2, Apache 2.0.54.
This is my code:
<?
header("Pragma: public");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: must-revalidate");
header("Content-type: application/pdf");
header("Content-Length: ".filesize($file));
header("Content-disposition: inline; filename=$file");
header("Accept-Ranges: ".filesize($file));
readfile($file);
exit();
?>
It would work fine in Mozilla Firefox (1.0.7) but with IE (6.0.2800.1106) it would not bring up the Adobe Reader plugin and instead ask me to save it or open it as a PHP file.
Oddly enough, I turned off ZLib.compression and it started working. I guess the compression is confusing IE. I tried leaving out the content-length header thinking maybe it was unmatched filesize (uncompressed number vs actual received compressed size), but then without it it screws up Firefox too.
What I ended up doing was disabling Zlib compression for the PDF output pages using ini_set:
<?
ini_set('zlib.output_compression','Off');
?>
Maybe this will help someone. Will post over in the PDF section as well.
ontwerp AT zonnet.nl
03-Nov-2005 11:01
I was searching for a lowcost/opensource option for combining static html files [as templates] and dynamic output from perl or php routines etc. And the sooner or later I found out that this was the most stable, 'speedest' and customizeable way to produce usable pdf 's with nice formatting :
1] create html page output [perl-> html output, direct html output from any app or php echo's etc. [sort these html files locally]
2] parse all html [inluding webimages links, tables font formatting etc] to [E]PS files with the perl app : html2ps [as mentioned beneath]
http://user.it.uu.se/~jan/html2ps.html [sort all ps files by future pdf page positions]
3] use the free ps2pdf/ps2pdfwr linux application
http://www.ps2pdf.com/convert/index.htm [uses gostscript, ghostview libs and so on etc]
Has great formatting options like headers, footers, numbering etc
[sort pdf files]
4] convert all pdf files to 1 pdf file with : pdftk [pdftoolkit], deliveres optional compressions/encryption, background stamps etc
One should ask why using different scripts :
- combination perl/php is great : perl is speedier at some issues like conversion to ps files in my experience
- ps to pdf is quickier then direct php to pdf [in my exp.!]
- I have total control over every files whenever i change html files as a template I use only editors or other app. for it [online or offline].
p.s. I had to make a opensource solution for creating simpel report analyses that's based on things like :
- first page [name / title / #/ date]
- some static info [like introduction, copyrights etc]
- some dynamic info [outputted from php->dbase queries] combined
with html tags/images etc.
And this all mixed [so seperated in files for transparancy]. Also the 3 way manner : data-> html, html->ps, ps->pdf, is easier and quickier to program or adjust in every step.
Correct me if i'm wrong [mail me to]
ing. Valentijn Langendorff
Design & Technologist
ragnar at deulos dot com
07-Oct-2005 07:30
After one hole day understanding how pdflib works i got the conclusion that its enough hard to draw just with words to furthermore for drawing a line maybe you will need something like four lines of code, so i did my own functions to do the life easier and the code more understable to modify and draw. I also made a function that will draw a rect with the corners round and the posibility even to fill it ;)
You can get it from http://www.deulos.com/pdf_php.php
feel free to make suggestions or whatever u like ;o)
17-Sep-2005 11:26
some code that can be very helpful for starters.
<?php
// Declare PDF File
$pdf = pdf_new();
PDF_open_file($pdf);
// Set Document Properties
PDF_set_info($pdf, "author", "Alexander Pas");
PDF_set_info($pdf, "title", "PDF by PHP Example");
PDF_set_info($pdf, "creator", "Alexander Pas");
PDF_set_info($pdf, "subject", "Testing Code");
// Get fonts to use
pdf_set_parameter($pdf, "FontOutline", "Arial=arial.ttf"); // get a custom font
$font1 = PDF_findfont($pdf, "Helvetica-Bold", "winansi", 0); // declare default font
$font2 = PDF_findfont($pdf, "Arial", "winansi", 1); // declare custom font & embed into file
/*
You can use the following Fontypes 14 safely (the default fonts)
Courier, Courier-Bold, Courier-Oblique, Courier-BoldOblique
Helvetica, Helvetica-Bold, Helvetica-Oblique, Helvetica-BoldOblique
Times-Roman, Times-Bold, Times-Italic, Times-BoldItalic
Symbol, ZapfDingbats
*/
// make the images
$image1 = PDF_open_image_file($pdf, "gif", "image.gif"); //supported filetypes are: jpeg, tiff, gif, png.
//Make First Page
PDF_begin_page($pdf, 450, 450); // page width and height.
$bookmark = PDF_add_bookmark($pdf, "Front"); // add a top level bookmark.
PDF_setfont($pdf, $font1, 12); // use this font from now on.
PDF_show_xy($pdf, "First Page!", 5, 225); // show this text measured from the left top.
pdf_place_image($pdf, $image1, 255, 5, 1); // last number will schale it.
PDF_end_page($pdf); // End of Page.
//Make Second Page
PDF_begin_page($pdf, 450, 225); // page width and height.
$bookmark1 = PDF_add_bookmark($pdf, "Chapter1", $bookmark); // add a nested bookmark. (can be nested multiple times.)
PDF_setfont($pdf, $font2, 12); // use this font from now on.
PDF_show_xy($pdf, "Chapter1!", 225, 5);
PDF_add_bookmark($pdf, "Chapter1.1", $bookmark1); // add a nested bookmark (already in a nested one).
PDF_setfont($pdf, $font1, 12);
PDF_show_xy($pdf, "Chapter1.1", 225, 5);
PDF_end_page($pdf);
// Finish the PDF File
PDF_close($pdf); // End Of PDF-File.
$output = PDF_get_buffer($pdf); // assemble the file in a variable.
// Output Area
header("Content-type: application/pdf"); //set filetype to pdf.
header("Content-Length: ".strlen($output)); //content length
header("Content-Disposition: attachment; filename=test.pdf"); // you can use inline or attachment.
echo $output; // actual print area!
// Cleanup
PDF_delete($pdf);
?>
thodge at ipswich dot qld dot gov dot au
04-Sep-2005 10:22
Yet another addition to the PDF text extraction code last posted by jorromer. The code only seemed to work for PDF 1.2 (Acrobat 3.x) or below. This pdfExtractText function uses regular expressions to cover cases I have found in PDF 1.3 and 1.4 documents. The code also handles closing brackets in the text stream, which were ignored by the previous version. My regular expression skills are somewhat lacking, so improvements may possible by a more skilled programmer. I'm sure there are still cases that this function will not handle, but I haven't come across any yet...
<?php
function pdf2string($sourcefile) {
$fp = fopen($sourcefile, 'rb');
$content = fread($fp, filesize($sourcefile));
fclose($fp);
$searchstart = 'stream';
$searchend = 'endstream';
$pdfText = '';
$pos = 0;
$pos2 = 0;
$startpos = 0;
while ($pos !== false && $pos2 !== false) {
$pos = strpos($content, $searchstart, $startpos);
$pos2 = strpos($content, $searchend, $startpos + 1);
if ($pos !== false && $pos2 !== false){
if ($content[$pos] == 0x0d && $content[$pos + 1] == 0x0a) {
$pos += 2;
} else if ($content[$pos] == 0x0a) {
$pos++;
}
if ($content[$pos2 - 2] == 0x0d && $content[$pos2 - 1] == 0x0a) {
$pos2 -= 2;
} else if ($content[$pos2 - 1] == 0x0a) {
$pos2--;
}
$textsection = substr(
$content,
$pos + strlen($searchstart) + 2,
$pos2 - $pos - strlen($searchstart) - 1
);
$data = @gzuncompress($textsection);
$pdfText .= pdfExtractText($data);
$startpos = $pos2 + strlen($searchend) - 1;
}
}
return preg_replace('/(\s)+/', ' ', $pdfText);
}
function pdfExtractText($psData){
if (!is_string($psData)) {
return '';
}
$text = '';
// Handle brackets in the text stream that could be mistaken for
// the end of a text field. I'm sure you can do this as part of the
// regular expression, but my skills aren't good enough yet.
$psData = str_replace('\)', '##ENDBRACKET##', $psData);
$psData = str_replace('\]', '##ENDSBRACKET##', $psData);
preg_match_all(
'/(T[wdcm*])[\s]*(\[([^\]]*)\]|\(([^\)]*)\))[\s]*Tj/si',
$psData,
$matches
);
for ($i = 0; $i < sizeof($matches[0]); $i++) {
if ($matches[3][$i] != '') {
// Run another match over the contents.
preg_match_all('/\(([^)]*)\)/si', $matches[3][$i], $subMatches);
foreach ($subMatches[1] as $subMatch) {
$text .= $subMatch;
}
} else if ($matches[4][$i] != '') {
$text .= ($matches[1][$i] == 'Tc' ? ' ' : '') . $matches[4][$i];
}
}
// Translate special characters and put back brackets.
$trans = array(
'...' => '…',
'\205' => '…',
'\221' => chr(145),
'\222' => chr(146),
'\223' => chr(147),
'\224' => chr(148),
'\226' => '-',
'\267' => '•',
'\(' => '(',
'\[' => '[',
'##ENDBRACKET##' => ')',
'##ENDSBRACKET##' => ']',
chr(133) => '-',
chr(141) => chr(147),
chr(142) => chr(148),
chr(143) => chr(145),
chr(144) => chr(146),
);
$text = strtr($text, $trans);
return $text;
}
?>
28-Aug-2005 09:58
If you want to display the number of pages (for example: page 1 of 3) then the following code could be helpful:
<?php
...
$pdf->begin_page_ext(842,595 , "");
.. add text,images,...
$pdf->suspend_page("");
$pdf->begin_page_ext(842,595 , "");
.. add text,images,...
$pdf->suspend_page("");
... create all pages
$pdf->resume_page("pagenumber 1");
... add number of pages to page 1
$pdf->end_page_ext("");
$pdf->resume_page("pagenumber 2");
... add number of pages to page 2
$pdf->end_page_ext("");
...
?>
jorromer at uchile dot cl -- Krash
07-Jun-2005 10:51
I recently use mattb code below for the extraction of text from PDF files. I modify this code for only extract text fields.
Hope i can help some one
Here is the Function
<?php
$text = pdf2string("file.pdf");
echo $text;
function pdf2string($sourcefile){
$fp = fopen($sourcefile, 'rb');
$content = fread($fp, filesize($sourcefile));
fclose($fp);
$searchstart = 'stream';
$searchend = 'endstream';
$pdfdocument = '';
$pos = 0;
$pos2 = 0;
$startpos = 0;
while( $pos !== false && $pos2 !== false ){
$pos = strpos($content, $searchstart, $startpos);
$pos2 = strpos($content, $searchend, $startpos + 1);
if ($pos !== false && $pos2 !== false){
if ($content[$pos]==0x0d && $content[$pos+1]==0x0a) $pos+=2;
else if ($content[$pos]==0x0a) $pos++;
if ($content[$pos2-2]==0x0d && $content[$pos2-1]==0x0a) $pos2-=2;
else if ($content[$pos2-1]==0x0a) $pos2--;
$textsection = substr($content, $pos + strlen($searchstart) + 2, $pos2 - $pos - strlen($searchstart) - 1);
$data = @gzuncompress($textsection);
$data = ExtractText2($data);
$startpos = $pos2 + strlen($searchend) - 1;
if ($data === false){
return -1;}
$pdfdocument .= $data;}}
return $pdfdocument;}
function ExtractText2($postScriptData){
$sw = true;
$textStart = 0;
$len = strlen($postScriptData);
while ($sw){
$ini = strpos($postScriptData, '(', $textStart);
$end = strpos($postScriptData, ')', $textStart+1);
if (($ini>0) && ($end>$ini)){
$valtext = strpos($postScriptData,'Tj',$end+1);
if ($valtext == $end + 2)
$text .= substr($postScriptData,$ini+1,$end - $ini - 1);}
$textStart = $end + 1;
if ($len<=$textStart) $sw=false;
if (($ini == 0) && ($end == 0)) $sw=false;}
$trans = array("\\341" => "a","\\351" => "e","\\355" => "i","\\363" => "o","\\223" => "","\\224" => "");
$text = strtr($text, $trans);
return $text;
}
?>
webadmin at secretscreen dot com
05-Apr-2005 02:51
I found this info about pdflib scope on a Chinese (I think) site and translated it. I was trying to do pdf_setfont and kept getting the wrong scope error. Turns out it has to be in the Page scope. So pdf_setfont will only work when called between pdf_begin_page and pdf_end_page.
#########################################
When API of the PDFlib is called, the error, Can't - IN 'document' scope occurs
There is a concept of " the scope " in the PDFlib, as for all API of the PDFlib it is called with some scope, the *1 which is decided This error occurs when it is called other than the scope where API is appointed. The chart below in reference, please verify API call position.
Path: PDF_moveto (), PDF_circle (), PDF_arc (), PDF_arcn (), PDF_rect () in each case PDF_stroke (), PDF_closepath_stroke (), PDF_fill (), PDF_fill_stroke (), PDF_closepath_fill_stroke (), PDF_clip (), PDF_endpath () the between
Page: PDF_begin_page () with PDF_end_page () in between outside path
Template: PDF_begin_template () with PDF_end_template () in between outside path
Pattern: PDF_begin_pattern () with PDF_end_pattern () in between outside path
Font: PDF_begin_font () with PDF_end_font () in between outside glyph
Glyph: PDF_begin_glyph () with PDF_end_glyph () in between outside path
Document: PDF_open_* () with PDF_close () in between outside page tempalte and pattern
Object: The PDF_new () with the PDF_delete () it belongs to the other no scope in between the place
Null: Outside object
Any: All scopes other than
##########################################
Hope this helps others as much as it helped me!!!
chu61 dot tw at gmail dot com
06-Mar-2005 07:57
How to get how many pages in a PDF? I read PDF spec. V1.6 and find this:
PDF set a "Page Tree Node" to define the ordering of pages in the document. The tree structure allows PDF applications, using little memory to quickly open a document containing thousands of pages.
If a PDF have 63 pages, the page tree node will like this...
2 0 obj
<< /Type /Pages
/Kidsn [ 4 0 R
10 0 R
]
/Count 63 <---- YES, got it
>>
endobj
[P.S] a PDF may not only a pages tree node, The right answer is in "root page tree node", if /Count XX with /Parent XXX node, it not "root page tree node"
SO, You must find the node with /Count XX and Without /Parent terms, and you'll get total pages of PDF
%PDF-1.0 ~ %PDF-1.5 all works
Alex form Taipei,Taiwan
mattb at bluewebstudios dot com
04-Feb-2005 01:44
I recently tested Donatas' code below for the extraction of text from PDF files. After running into a few problems where PDF files were not being read at all, I've modified it somewhat. It still isn't perfect, but should work great for searching. Thanks Donatas.
<?php
$test = pdf2string("<pathtoPDFfile>");
echo "$test";
# Returns a -1 if uncompression failed
function pdf2string($sourcefile)
{
$fp = fopen($sourcefile, 'rb');
$content = fread($fp, filesize($sourcefile));
fclose($fp);
# Locate all text hidden within the stream and endstream tags
$searchstart = 'stream';
$searchend = 'endstream';
$pdfdocument = "";
$pos = 0;
$pos2 = 0;
$startpos = 0;
# Iterate through each stream block
while( $pos !== false && $pos2 !== false )
{
# Grab beginning and end tag locations if they have not yet been parsed
$pos = strpos($content, $searchstart, $startpos);
$pos2 = strpos($content, $searchend, $startpos + 1);
if( $pos !== false && $pos2 !== false )
{
# Extract compressed text from between stream tags and uncompress
$textsection = substr($content, $pos + strlen($searchstart) + 2, $pos2 - $pos - strlen($searchstart) - 1);
$data = @gzuncompress($textsection);
# Clean up text via a special function
$data = ExtractText($data);
# Increase our PDF pointer past the section we just read
$startpos = $pos2 + strlen($searchend) - 1;
if( $data === false ) { return -1; }
$pdfdocument = $pdfdocument . $data;
}
}
return $pdfdocument;
}
function ExtractText($postScriptData)
{
while( (($textStart = strpos($postScriptData, '(', $textStart)) && ($textEnd = strpos($postScriptData, ')', $textStart + 1)) && substr($postScriptData, $textEnd - 1) != '\\') )
{
$plainText .= substr($postScriptData, $textStart + 1, $textEnd - $textStart - 1);
if( substr($postScriptData, $textEnd + 1, 1) == ']' ) // This adds quite some additional spaces between the words
{
$plainText .= ' ';
}
$textStart = $textStart < $textEnd ? $textEnd : $textStart + 1;
}
return stripslashes($plainText);
}
?>
michi (Alt+Q) marel.at
01-Jul-2004 07:10
<?PHP
/* A little helpful function to calculate millimeters to points */
function calcToPt($intMillimeter) {
$intPoints = ($intMillimeter*72)/25.4;
$intPoints = round($intPoints);
return $intPoints;
}
/* For example: Create DIN A4 210x297 mm */
pdf_begin_page( $pdf, calcToPt(210), calcToPt(297)); // 595x842 pt
?>
donatas at spurgius dot com
22-Jun-2004 12:56
I've been looking for a way to extract plain text from PDF documents (needed to search for text inside 'em). Not being able to find one I wrote the needed functions myself. here you go folks.
<?php
function pdf2string ($sourceFile)
{
$textArray = array ();
$objStart = 0;
$fp = fopen ($sourceFile, 'rb');
$content = fread ($fp, filesize ($sourceFile));
fclose ($fp);
$searchTagStart = chr(13).chr(10).'stream';
$searchTagStartLenght = strlen ($searchTagStart);
while ((($objStart = strpos ($content, $searchTagStart, $objStart)) && ($objEnd = strpos ($content, 'endstream', $objStart+1))))
{
$data = substr ($content, $objStart + $searchTagStartLenght + 2, $objEnd - ($objStart + $searchTagStartLenght) - 2);
$data = @gzuncompress ($data);
if ($data !== FALSE && strpos ($data, 'BT') !== FALSE && strpos ($data, 'ET') !== FALSE)
{
$textArray [] = ExtractText ($data);
}
$objStart = $objStart < $objEnd ? $objEnd : $objStart + 1;
}
return $textArray;
}
function ExtractText ($postScriptData)
{
while ((($textStart = strpos ($postScriptData, '(', $textStart)) && ($textEnd = strpos ($postScriptData, ')', $textStart + 1)) && substr ($postScriptData, $textEnd - 1) != '\\'))
{
$plainText .= substr ($postScriptData, $textStart + 1, $textEnd - $textStart - 1);
if (substr ($postScriptData, $textEnd + 1, 1) == ']') //this adds quite some additional spaces between the words
{
$plainText .= ' ';
}
$textStart = $textStart < $textEnd ? $textEnd : $textStart + 1;
}
return stripslashes ($plainText);
}
?>
uwe at steinmann dot cx
13-May-2004 06:25
Those looking for a free replacement of pdflib may consider
pslib at http://pslib.sourceforge.net which produces PostScript but it can be easily turned into PDF by Acrobat Distiller or ghostscript. The API is very similar and even hypertext functions are supported. There
is also a php extension for pslib in PECL, called ps.
samcontact at myteks dot com
01-May-2004 04:28
Here is another great tutorial on basic PDF building w/ PHP:
http://hotwired.lycos.com/webmonkey/02/20/index3a.html?tw=programming
=======================
http://myteks.com
Computer Repair & Web Design
=======================
SenorTZ senortz at nospam dot yahoo dot com
28-Jul-2003 06:23
About creating a PDF document based on the content of another document(let's say a text file):
I have tried to send to the PDF-creator page from a link from the sender page the file name of the file I want to read the content from and generate the PDF document containing this content. The idea is is that when I tried to reffer the pdf-creator page via the link your_root/create_pdf.php?filename=$your_file_name, the pdf-creator page does not behave well when before creating the pdf document I have a line like $filename = $_GET["filename"].
I solved this using on the sender page instead of the link a form with a button, so the form has as action "create_pdf.php", as method "post" and a hidden field containing the "filename" value. And it works like this if, on the pdf-creator page I have a line like $filename = $_POST["filename"].
I would like to understand why this way it works and the other way does not.
I hope this helps. Here are the pieces of code I used.
Sender page:
print("<form name='to_pdf' action='see_pdf_file.php' method='post'>");
print("<br/><input type='submit' value='PDF'><input type='hidden' name='filename' value='$filename'></form>");
PDF-creator page:
<?
$filename = $_POST["filename"];
$file_handle = fopen($filename, "r");
$file_content = file_get_contents($filename);
fclose($file_handle);
//
$file_content = wordwrap($file_content,72,"|");
$a_row = explode("|",$file_content);
$i = 0;
//
$pdf = pdf_new();
pdf_open_file($pdf, "");
pdf_begin_page($pdf, 595, 842);
pdf_set_font($pdf, "Times-Roman", 16, "host");
pdf_add_outline($pdf, "Page 1");
pdf_set_value($pdf, "textrendering", 1);
pdf_show_xy($pdf, 'The content of the file:',50,700);
while ($a_row[$i] != "")
{
pdf_continue_text($pdf,$a_row[$i]);
$i++;
}
pdf_end_page($pdf);
pdf_close($pdf);
//
$data = pdf_get_buffer($pdf);
//
header("Content-type: application/pdf");
header("Content-disposition: inline; filename=test.pdf");
header("Content-length: " . strlen($data));
//
echo $data;
?>
PDFLib and PHP 431 used.
Thanks.
bmironov at jonview dot com
24-Jun-2003 03:46
RedHat 9 + Apache 2.0 + PHP 4.3.2 + Oracle 9i + PDFlib 5.0.1 (binary distribution)
It seems to be a working bundle if you do some magic with ./configure:
RedHat 9:
kernel-2.4.20-18.9
Apache 2.0.46:
./configure --enable-so --enable-rewrite=shared --enable-status --enable-mpm=prefork
PHP 4.3.2:
./configure \
--program-prefix= \
--prefix=/usr \
--exec-prefix=/usr \
--bindir=/usr/bin \
--sbindir=/usr/sbin \
--sysconfdir=/etc \
--datadir=/usr/share \
--includedir=/usr/include \
--libdir=/usr/lib \
--libexecdir=/usr/libexec \
--localstatedir=/var \
--sharedstatedir=/usr/com \
--mandir=/usr/share/man \
--infodir=/usr/share/info \
--with-config-file-path=/etc \
--with-config-file-scan-dir=/etc/php.d \
--without-tsrm-pthreads \ # !!!!!!!!!!!!!!!!!!!!
--with-zlib \
--with-gd \
--enable-gd-native-ttf \
--with-ttf \
--without-mysql \
--with-apxs2filter=/usr/local/apache2/bin/apxs \
--with-oci8 \
--enable-sigchild \
--enable-inline-optimization
Oracle9i:
ln -s $ORACLE_HOME/rdbms/public/nzerror.h $ORACLE_HOME/rdbms/demo/nzerror.h
ln -s $ORACLE_HOME/rdbms/public/nzt.h $ORACLE_HOME/rdbms/demo/nzt.h
ln -s $ORACLE_HOME/rdbms/public/ociextp.h $ORACLE_HOME/rdbms/demo/ociextp.h
If you want to use bundled GD-library then:
1) install following packages: libjpeg, libjpeg-devel, libpng, libpng-devel, freetype, freetype-devel, libtiff, libtiff-devel, zlib, zlib-devel
2) ln -s /usr/lib/libjpeg.so.62 /usr/lib/libjpeg.so
ln -s /usr/lib/libpng.so.62 /usr/lib/libpng.so
It seems to be a working combination, because it is NOT give you:
1) error message in Apache's error_log:
Module compiled with module API=20020429, debug=0, thread-safety=0
PHP compiled with module API=20020429, debug=0, thread-safety=1
2) error message in Apache's error_log:
[notice] child pid 12345 exit signal Segmentation fault (11)
3) MS Internet Explorer can show PDF-output from your PHP-script via Acrobat plug-in and does not crush. No confusing messages about opening "Adobe Acrobat Control for ActiveX".
Hope it will save you some time.
Good luck,
Boris
pbierans at lynet dot de
27-Mar-2002 09:56
Load extension, open a PDF, add a font, modify PDF in memory and send
it to browser:
<?php
// no cache headers:
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
$ext_name="libpdf_php.so";
// libpdf_php.so is the PDFLIB for SunOS by "PDFlib GmbH"
// visit http://www.pdflib.com
// if the extension is not automatically loaded by Apache
// dl() will try to load it on demand:
if (!extension_loaded($ext_name) && !@dl($ext_name))
{
?>
<table width="100%" border="0"><tr><td align="center">
<table style="border: solid #f0f0f0 2px;"><tr>
<td valign="middle" style="padding: 20px; margin: 0px;">
<p style="font-family: arial; font-size: 12px; ">
<b>Sorry,</b><br>
<br>
A PDF can not be generated right now.<br>
The administrator has been informed and will fix this as
soon as possible.<br>
Please try again later.
</p>
</td></tr></table>
</td></tr></table>
<?php
mail('admin@domain.com','Error: PDFLib not found',
'Called by script:\n '.$SCRIPT_FILENAME.'?'.$QUERY_STRING,
"From: warnings@domain.com\n");
exit;
} // verify that extension is usable
// unique serial number:
srand(microtime()*10000);
$usnr= gmdate("Ymd-His-").rand(1000,9999).'-';
$pdf_file=$usnr.'result.pdf';
$src_file='source.pdf';
// create pdf object
$pdf = pdf_new();
pdf_open_file($pdf);
pdf_set_parameter($pdf, 'serial', 'if-you-have-one');
// fonts to embed, they are in the folder of this file:
pdf_set_parameter($pdf, 'FontAFM', 'TradeGothic=Tg______.afm');
pdf_set_parameter($pdf, 'FontOutline', 'TradeGothic=Tg______.pfb');
pdf_set_parameter($pdf, 'FontPFM', 'TradeGothic=Tg______.pfm');
// load the source file:
$src_doc =pdf_open_pdi($pdf,$src_file,'', 0);
$src_page =pdf_open_pdi_page($pdf,$src_doc,1,'');
$src_width =pdf_get_pdi_value($pdf,'width' ,$src_doc,$src_page,0);
$src_height=pdf_get_pdi_value($pdf,'height',$src_doc,$src_page,0);
pdf_begin_page($pdf, $src_width, $src_height);
{
// place the sourcefile to the background of the actual page:
pdf_place_pdi_page($pdf,$src_page,0,0,1,1);
pdf_close_pdi_page($pdf,$src_page);
// modify the page:
pdf_set_font($pdf, 'TradeGothic', 8, 'host');
pdf_show_xy($pdf, 'Now: '.gmdate("Y-m-d H:i:s"),50,50);
}
pdf_end_page($pdf);
pdf_close($pdf);
// prepare output:
$pdfdata = pdf_get_buffer($pdf); // to echo the pdf-data
$pdfsize = strlen($pdfdata); // IE requires the datasize
// real datatype headers:
header('Content-type: application/pdf');
header('Content-disposition: attachment; filename="'.$pdf_file.'"');
header('Content-length: '.$pdfsize);
echo $pdfdata;
exit; // keep this one so no #13#10 or #32 will be written
?>