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PDF_info_textflow PDF_get_pdi_value

Last updated: Fri, 26 Jan 2007

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# PDF_get_value

(PHP 4 >= 4.0.1, PECL)

PDF_get_value -- Get numerical parameter

## Описание

float PDF_get_value ( resource p, string key, float modifier )

Gets the value of some PDFlib parameter with numerical type.

add a note User Contributed Notes
PDF_get_value
02-Feb-2006 07:29
`Note:
imagewidth and imageheigh do not return the actual width and height. Instead they are 2 times the actual width and height. I don't understand why, but this seems to be the case with multi page tiffs (and maybe other images). In order to insert a multi page tiff into a PDF without out of control extra space do the following:
<?php
$pdf = pdf_new();
pdf_set_parameter($pdf, "licensefile", "/etc/pdflib/licensekeys.txt");
pdf_open_file($pdf, "/tmp/tifftest.pdf");
for ($i=1; $i<=4; $i++) {
$image = pdf_open_image_file($pdf, "tiff", "/tmp/test.tif", "page", $i);
$w = pdf_get_value($pdf, "imagewidth", $image);
$h = pdf_get_value($pdf, "imageheight", $image);
// $w and $h are at this point 2*width and 2*height!!
// To place the image without having lots of extra space:
pdf_begin_page($pdf, $w/2, $h/2);
pdf_place_image($pdf, $image, 0, 0, 0.5);
pdf_close_image($pdf, $image);
pdf_end_page($pdf);
}
pdf_close($pdf);
?>`
25-Jul-2005 02:10
`$width = PDF_get_value($p, "imagewidth", $image);`
_meto ALT+q web.de
19-Jun-2004 09:58
`There should be many more. For example I found this in the manual, wich was very helpfull for me:
$textx = pdf_get_value($p, "textx", 0);
$texty = pdf_get_value($p, "texty", 0);
These will extract the current textposition in the document.`
robert.chambersATroche.com
26-Nov-2003 08:41
`The Magic keywords are:
IMAGEWIDTH, IMAGEHEIGHT, RESX, RESY,
CAPHEIGHT, ASCENDER, DESCENDER, FONT
I looked in the sourcecode ...`
ceo at l-i-e dot com
23-Feb-2002 10:13
`See the main PDF manual page (the "PDF" link to the left) for the magic words that this function accepts.`
reneATcola.cc
01-Mar-2001 08:32
`To get the current font size, use something like this:<br>
$fontheight = PDF_get_value($pdf, "fontsize");`
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PDF_info_textflow PDF_get_pdi_value

Last updated: Fri, 26 Jan 2007
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