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pdf_add_pdflink
Synopsis
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
Description
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. |
Example
Example 909. Open an external PDF
<?php
// create new document
$pdf = pdf_new();
pdf_open_file($pdf);
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");
pdf_end_page($pdf);
pdf_close($pdf);
// 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;
?>