[jonathanphp]

Hey people!!!

How now the number the pages the one document PDF?

Bye...

[NeverMind]

do you mean you want to know how many pages a PDF document has?

[digioz]

The simple answer is: "It is not possible"

Having said that, here is a page on the PHP.net documentation that says the following:

http://us3.php.net/pdf

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

In other words, you would simply have to look for the "/Count ", and the number of pages will be right in front of it.

For example:

/Type /Pages 
/Kids [ 2386 0 R 2388 0 R 2389 0 R 2390 0 R 2391 0 R 2392 0 R 2393 0 R ] 
/Count 67

So Once you find the "/Type /Pages" inside the text of your PDF file, the "/Count " that follows it will have the number of pages in it.

[NeverMind]

interesting find digioz!
are these info found in the header of any PDF file? so you could simply use fread() with specified number of bytes to obtain these headers.

[digioz]

That is correct Nevermind (this information can be found inside ANY PDF file). So a simple fread() would allow you to read the contents of the pdf file in text format and extract the desired information.

[digioz]

I have been getting a lot of emails asking me about this issue, saying that there are more then one "/Type /Pages" inside their PDF file.

YES! But only one of those is the ROOT set.


Example Of a ROOT Identifier Set:

/Type /Pages 
/Kids [ 2386 0 R 2388 0 R 2389 0 R 2390 0 R 2391 0 R 2392 0 R 2393 0 R ] 
/Count 67
>>

Example of what is NOT the root node:

/Type /Pages 
/Kids [ 250 0 R 253 0 R 256 0 R 259 0 R 267 0 R 275 0 R 283 0 R 291 0 R 299 0 R 
] 
/Count 9 
/Parent 15770 0 R 
>>

Notice that in the second example there is a "/Parent" tag. This means that the second one is NOT the root. The first example however does NOT have a "/Parent", which means it IS the ROOT.

I hope this clarifies it for everyone.

[Oddish]

This thread is really interesting and could potentially solve my problem, but I must be doing something wrong since I can't find any such text in the pdf-files I upload. There's no /Pages or anything. I'm attaching a bit from a random pdf that I just echoed onto the page. Do I need to decode the contents in some way to find this /Pages text?

[Baboum]

Since you just have to read all the file to get the Count tags, and the parent node has got one too, the following php script should work.
It looks for the largest Count tag, that is the one from the parent node. Just save it as test.php and call it with test.php?file=my_pdf_file.pdf

<?php
if (!$fp = @fopen($_REQUEST['file'],"r")) {
        echo 'failed opening file '.$_REQUEST['file'];
}
else {
        $max=0;
        while(!feof($fp)) {
                $line = fgets($fp,255);
                if (preg_match('/\/Count [0-9]+/', $line, $matches)){
                        preg_match('/[0-9]+/',$matches[0], $matches2);
                        if ($max<$matches2[0]) $max=$matches2[0];
                }
        }
        fclose($fp);
echo 'There '.($max<2?'is ':'are ').$max.' page'.($max<2?'':'s').' in '. $_REQUEST['file'].'.';
}
?>

[adrianbj]

I know this thread is ancient, but since it has been revitalized with a solution, I thought I would chime in and say that Baboum's script works for me most of the time, but like Oddish, I do have some PDFs without Page/Count tags. I didn't create the original PDF, but I have tried recreating it, by printing to PDF from Acrobat, but still it does not contain the tags. Anyone have any ideas on how to add these properly. I tried some quick manual additions of it, but it broke the PDF.

[digioz]

Originally Posted by adrianbj

I know this thread is ancient, but since it has been revitalized with a solution, I thought I would chime in and say that Baboum's script works for me most of the time, but like Oddish, I do have some PDFs without Page/Count tags. I didn't create the original PDF, but I have tried recreating it, by printing to PDF from Acrobat, but still it does not contain the tags. Anyone have any ideas on how to add these properly. I tried some quick manual additions of it, but it broke the PDF.

What version of PDF is this document that doesn't have a /count (PDF 7, 8, 9)? Can you post a sample PDF with no count here?

Thanks,
Pete