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.
CXXI. PDF 函数
简介
The PDF functions in PHP can create PDF files using the PDFlib library which was initially created by Thomas Merz and is now maintained by PDFlib GmbH.
The documentation in this section is only meant to be an overview of the available functions in the PDFlib library and should not be considered an exhaustive reference. For the full and detailed explanation of each function, consult the PDFlib Reference Manual which is included in all PDFlib packages distributed by PDFlib GmbH. It provides a very good overview of what PDFlib is capable of doing and contains the most up-to-date documentation of all functions.
For a jump start we urge you to take a look at the programming samples which are contained in all PDFlib distribution packages. These samples demonstrate basic text, vector, and graphics output as well as higher-level functions, such as the PDF import facility (PDI).
All of the functions in PDFlib and the PHP module have identical function names and parameters. Unless configured otherwise, all lengths and coordinates are measured in PostScript points. There are generally 72 PostScript points to an inch, but this depends on the output resolution. Please see the PDFlib Reference Manual included in the PDFlib distribution for a more thorough explanation of the coordinate system used.
With version 6, PDFlib offers an object-oriented API for PHP 5 in addition to the function-oriented API for PHP 4. The main difference is the following:
In PHP 4, first a PDF resource has to be retrieved with a function call like
$p = PDF_new().
This PDF resource is used as the first parameter in all further function calls, such as in
PDF_begin_document($p, "", "").
In PHP 5 however, a PDFlib object is created with
$p = new PDFlib().
This object offers all PDFlib API functions as methods, e.g. as with
$p->begin_document("", "").
In addition, exceptions have been introduced in PHP 5 which are supported by PDFlib 6 and later as well.
Please see the examples below for more information.
注意: If you're interested in alternative free PDF generators that do not utilize external PDF libraries, see this related FAQ.
需求
PDFlib Lite is available as open source. However, the PDFlib Lite license allows free use only under certain conditions. PDFlib Lite supports a subset of PDFlib's functionality; please see the PDFlib web site for details. The full version of PDFlib is available for download at http://www.pdflib.com/products/pdflib-family/, but requires that you purchase a license for commercial use.
Issues with older versions of PDFlib
Any version of PHP 4 after March 9, 2000 does not support versions of PDFlib older than 3.0.
PDFlib 4.0 or greater is supported by PHP 4.3.0 and later.
安装
本 PECL 扩展未绑定于 PHP 中。 安装此 PECL 扩展库的信息可在手册中标题为 PECL 扩展库安装的一章中找到。 更多信息如新版本，下载，源文件，维护者信息以及更新日志等可以在这里找到： http://pecl.php.net/package/pdflib.
To get these functions to work in PHP < 4.3.9, you have to compile
PHP with --with-pdflib[=DIR]. DIR is
the PDFlib base install directory, defaults to
/usr/local.
Remarks about Deprecated PDFlib Functions
Starting with PHP 4.0.5, the PHP extension for PDFlib is officially supported by PDFlib GmbH. This means that all the functions described in the PDFlib Reference Manual are supported by PHP 4 with exactly the same meaning and the same parameters. However, with PDFlib Version 5.0.4 or higher all parameters have to be specified. For compatibility reasons, this binding for PDFlib still supports most of the deprecated functions, but they should be replaced by their new versions. PDFlib GmbH will not support any problems arising from the use of these deprecated functions. The documentation in this section indicates old functions as "Deprecated" and gives the replacement function to be used instead.
范例
Most of the functions are fairly easy to use. The most difficult part is probably creating your first PDF document. The following example should help to get you started. It is developed for PHP 4 and creates the file hello.pdf with one page. It defines some document info field contents, loads the Helvetica-Bold font and outputs the text "Hello world! (says PHP)".
The following example comes with the PDFlib distribution for PHP 5. It uses the new exception handling and object encapsulation features available in PHP 5. It creates the file hello.pdf with one page. It defines some document info field contents, loads the Helvetica-Bold font and outputs the text "Hello world! (says PHP)".
例 2. Hello World example from PDFlib distribution for PHP 5
|
- 目录
- PDF_activate_item -- Activate structure element or other content item
- PDF_add_annotation -- Add annotation [deprecated]
- PDF_add_bookmark -- Add bookmark for current page [deprecated]
- PDF_add_launchlink -- Add launch annotation for current page [deprecated]
- PDF_add_locallink -- Add link annotation for current page [deprecated]
- PDF_add_nameddest -- Create named destination
- PDF_add_note -- Set annotation for current page [deprecated]
- PDF_add_outline -- Add bookmark for current page [deprecated]
- PDF_add_pdflink -- Add file link annotation for current page [deprecated]
- PDF_add_thumbnail -- Add thumbnail for current page
- PDF_add_weblink -- Add weblink for current page [deprecated]
- PDF_arc -- Draw a counterclockwise circular arc segment
- PDF_arcn -- Draw a clockwise circular arc segment
- PDF_attach_file -- Add file attachment for current page [deprecated]
- PDF_begin_document -- Create new PDF file
- PDF_begin_font -- Start a Type 3 font definition
- PDF_begin_glyph -- Start glyph definition for Type 3 font
- PDF_begin_item -- Open structure element or other content item
- PDF_begin_layer -- Start layer
- PDF_begin_page_ext -- Start new page
- PDF_begin_page -- Start new page [deprecated]
- PDF_begin_pattern -- Start pattern definition
- PDF_begin_template -- Start template definition
- PDF_circle -- Draw a circle
- PDF_clip -- Clip to current path
- PDF_close_image -- Close image
- PDF_close_pdi_page -- Close the page handle
- PDF_close_pdi -- Close the input PDF document
- PDF_close -- Close pdf resource [deprecated]
- PDF_closepath_fill_stroke -- Close, fill and stroke current path
- PDF_closepath_stroke -- Close and stroke path
- PDF_closepath -- Close current path
- PDF_concat -- Concatenate a matrix to the CTM
- PDF_continue_text -- Output text in next line
- PDF_create_action -- Create action for objects or events
- PDF_create_annotation -- Create rectangular annotation
- PDF_create_bookmark -- Create bookmark
- PDF_create_field -- Create form field
- PDF_create_fieldgroup -- Create form field group
- PDF_create_gstate -- Create graphics state object
- PDF_create_pvf -- Create PDFlib virtual file
- PDF_create_textflow -- Create textflow object
- PDF_curveto -- Draw Bezier curve
- PDF_define_layer -- Create layer definition
- PDF_delete_pvf -- Delete PDFlib virtual file
- PDF_delete_textflow -- Delete textflow object
- PDF_delete -- Delete PDFlib object
- PDF_encoding_set_char -- Add glyph name and/or Unicode value
- PDF_end_document -- Close PDF file
- PDF_end_font -- Terminate Type 3 font definition
- PDF_end_glyph -- Terminate glyph definition for Type 3 font
- PDF_end_item -- Close structure element or other content item
- PDF_end_layer -- Deactivate all active layers
- PDF_end_page_ext -- Finish page
- PDF_end_page -- Finish page
- PDF_end_pattern -- Finish pattern
- PDF_end_template -- Finish template
- PDF_endpath -- End current path
- PDF_fill_imageblock -- Fill image block with variable data
- PDF_fill_pdfblock -- Fill PDF block with variable data
- PDF_fill_stroke -- Fill and stroke path
- PDF_fill_textblock -- Fill text block with variable data
- PDF_fill -- Fill current path
- PDF_findfont -- Prepare font for later use [deprecated]
- PDF_fit_image -- Place image or template
- PDF_fit_pdi_page -- Place imported PDF page
- PDF_fit_textflow -- Format textflow in rectangular area
- PDF_fit_textline -- Place single line of text
- PDF_get_apiname -- Get name of unsuccessfull API function
- PDF_get_buffer -- Get PDF output buffer
- PDF_get_errmsg -- Get error text
- PDF_get_errnum -- Get error number
- PDF_get_font -- Get font [deprecated]
- PDF_get_fontname -- Get font name [deprecated]
- PDF_get_fontsize -- Font handling [deprecated]
- PDF_get_image_height -- Get image height [deprecated]
- PDF_get_image_width -- Get image width [deprecated]
- PDF_get_majorversion -- Get major version number [deprecated]
- PDF_get_minorversion -- Get minor version number [deprecated]
- PDF_get_parameter -- Get string parameter
- PDF_get_pdi_parameter -- Get PDI string parameter
- PDF_get_pdi_value -- Get PDI numerical parameter
- PDF_get_value -- Get numerical parameter
- PDF_info_textflow -- Query textflow state
- PDF_initgraphics -- Reset graphic state
- PDF_lineto -- Draw a line
- PDF_load_font -- Search and prepare font
- PDF_load_iccprofile -- Search and prepare ICC profile
- PDF_load_image -- Open image file
- PDF_makespotcolor -- Make spot color
- PDF_moveto -- Set current point
- PDF_new -- Create PDFlib object
- PDF_open_ccitt -- Open raw CCITT image [deprecated]
- PDF_open_file -- Create PDF file [deprecated]
- PDF_open_gif -- Open GIF image [deprecated]
- PDF_open_image_file -- Read image from file [deprecated]
- PDF_open_image -- Use image data [deprecated]
- PDF_open_jpeg -- Open JPEG image [deprecated]
- PDF_open_memory_image -- Open image created with PHP's image functions [not supported]
- PDF_open_pdi_page -- Prepare a page
- PDF_open_pdi -- Open PDF file
- PDF_open_tiff -- Open TIFF image [deprecated]
- PDF_place_image -- Place image on the page [deprecated]
- PDF_place_pdi_page -- Place PDF page [deprecated]
- PDF_process_pdi -- Process imported PDF document
- PDF_rect -- Draw rectangle
- PDF_restore -- Restore graphics state
- PDF_resume_page -- Resume page
- PDF_rotate -- Rotate coordinate system
- PDF_save -- Save graphics state
- PDF_scale -- Scale coordinate system
- PDF_set_border_color -- Set border color of annotations [deprecated]
- PDF_set_border_dash -- Set border dash style of annotations [deprecated]
- PDF_set_border_style -- Set border style of annotations [deprecated]
- PDF_set_char_spacing -- Set character spacing [deprecated]
- PDF_set_duration -- Set duration between pages [deprecated]
- PDF_set_gstate -- Activate graphics state object
- PDF_set_horiz_scaling -- Set horizontal text scaling [deprecated]
- PDF_set_info_author -- Fill the author document info field [deprecated]
- PDF_set_info_creator -- Fill the creator document info field [deprecated]
- PDF_set_info_keywords -- Fill the keywords document info field [deprecated]
- PDF_set_info_subject -- Fill the subject document info field [deprecated]
- PDF_set_info_title -- Fill the title document info field [deprecated]
- PDF_set_info -- Fill document info field
- PDF_set_layer_dependency -- Define relationships among layers
- PDF_set_leading -- Set distance between text lines [deprecated]
- PDF_set_parameter -- Set string parameter
- PDF_set_text_matrix -- Set text matrix [deprecated]
- PDF_set_text_pos -- Set text position
- PDF_set_text_rendering -- Determine text rendering [deprecated]
- PDF_set_text_rise -- Set text rise [deprecated]
- PDF_set_value -- Set numerical parameter
- PDF_set_word_spacing -- Set spacing between words [deprecated]
- PDF_setcolor -- Set fill and stroke color
- PDF_setdash -- Set simple dash pattern
- PDF_setdashpattern -- Set dash pattern
- PDF_setflat -- Set flatness
- PDF_setfont -- Set font
- PDF_setgray_fill -- Set fill color to gray [deprecated]
- PDF_setgray_stroke -- Set stroke color to gray [deprecated]
- PDF_setgray -- Set color to gray [deprecated]
- PDF_setlinecap -- Set linecap parameter
- PDF_setlinejoin -- Set linejoin parameter
- PDF_setlinewidth -- Set line width
- PDF_setmatrix -- Set current transformation matrix
- PDF_setmiterlimit -- Set miter limit
- PDF_setpolydash -- Set complicated dash pattern [deprecated]
- PDF_setrgbcolor_fill -- Set fill rgb color values [deprecated]
- PDF_setrgbcolor_stroke -- Set stroke rgb color values [deprecated]
- PDF_setrgbcolor -- Set fill and stroke rgb color values [deprecated]
- PDF_shading_pattern -- Define shading pattern
- PDF_shading -- Define blend
- PDF_shfill -- Fill area with shading
- PDF_show_boxed -- Output text in a box [deprecated]
- PDF_show_xy -- Output text at given position
- PDF_show -- Output text at current position
- PDF_skew -- Skew the coordinate system
- PDF_stringwidth -- Return width of text
- PDF_stroke -- Stroke path
- PDF_suspend_page -- Suspend page
- PDF_translate -- Set origin of coordinate system
- PDF_utf16_to_utf8 -- Convert string from UTF-16 to UTF-8
- PDF_utf8_to_utf16 -- Convert string from UTF-8 to UTF-16
add a note
User Contributed Notes
david at metabin
19-Jul-2007 11:19
19-Jul-2007 11:19
brain23 at gmx dot de
03-Jul-2007 02:28
03-Jul-2007 02:28
For FPDF there also is an addon (FPDI) available, which let you import existing PDF documents:
http://www.setasign.de/products/pdf-php-solutions/fpdi/
jaymaity at gmail dot com
01-Jun-2007 12:22
01-Jun-2007 12:22
Totally free open source alternative is also available without any license cost at
http://fpdf.org/
jkndrkn at gmail dot com
03-May-2007 05:51
03-May-2007 05:51
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
30-Mar-2007 05:09
30-Mar-2007 05:09
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
29-Mar-2007 06:38
29-Mar-2007 06:38
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 $a_result;
}
?>
brendandonhue at comcast dot net
22-Aug-2006 03:35
22-Aug-2006 03:35
Here is a function to test whether a file is a PDF without using any external library.
<?php
define('PDF_MAGIC', "\\x25\\x50\\x44\\x46\\x2D");
function is_pdf($filename) {
return (file_get_contents($filename, false, null, 0, strlen(PDF_MAGIC)) === PDF_MAGIC) ? true : false;
}
?>
It's not checking if the whole file is valid, just if the correct header is present at the beginning of the file.
MAGnUm at magnumhome dot servehttp.com
17-Jul-2006 09:01
17-Jul-2006 09:01
domPDF is also a great PDF creation interface. it basically converts your code to CSS and then builds the PDF from that with the absolute positions, and what not...
spingary at yahoo dot com
12-Jan-2006 08:55
12-Jan-2006 08:55
I was having trouble with streaming inline PDf's using PHP 5.0.2, Apache 2.0.54.
This is my code:
<?
header("Pragma: public");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: must-revalidate");
header("Content-type: application/pdf");
header("Content-Length: ".filesize($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 07:01
03-Nov-2005 07:01
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
08-Oct-2005 02:30
08-Oct-2005 02:30
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 06:26
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
05-Sep-2005 05:22
05-Sep-2005 05:22
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 04:58
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 05:51
07-Jun-2005 05:51
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 !==