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PhpDig is a PHP MySQL based
Web Spider & Search Engine.



pdf_add_pdflink — Adds link to PDF document


bool pdf_add_pdflink(pdf, llx, lly, urx, ury, filename, page, zoom);
resource pdf: PDF object identifier
double llx: Lower left x coordinate
double lly: Lower left y coordinate
double urx: Upper right x coordinate
double ury: Upper right y coordinate
string filename: File to link to
int page: Page number of target page
string zoom: Destination page zoom


Always TRUE


Creates a link to an external PDF file. The bounding box of the link is specified from the lower left coordinates llx , lly to the upper right coordinates urx , ury . page refers to the page number to go to when the link is clicked on.

zoom sets the level of magnification of the destination file. zoom can be one of the following values:

destination explanation
retain Retain the current zoom factor
fitpage Fit the complete page in the window
fitwidth Fit the page width in the window
fitheight Fit the page height in the window
fitbbox Fir the pages bounding box in the window.


Since versions 3.0.12 and 4.0


Example 909. Open an external PDF


// create new document
$pdf = pdf_new();
pdf_begin_page($pdf, 500, 700);

$font = pdf_findfont($pdf, "Courier", "host", 0);
pdf_setfont($pdf, $font, 20);

$text = "Open external file";
$size = 20;
$startx = 50;
$starty = 620;

// determine length of string
$len = pdf_stringwidth($pdf, $text, $font, $size);
pdf_show_xy($pdf, $text, $startx, $starty);

// create the link to an external file
pdf_add_pdflink($pdf, $startx, $starty, $startx+$len, $starty+$size, "opentest.pdf", 1,  "fitheight");


// display the PDF document
$data = pdf_get_buffer($pdf);
header("Content-type: application/pdf");
header("Content-disposition: inline; filename=test.pdf");
header("Content-length: " . strlen($data));
echo $data;

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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