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Q: Is there a size limit, (either in terms of filesize or page numbers) for pdf files? We are looking at creating a document of around 1000 pages and would like to know if it's feasible before we start. [Q77]
A: Check out the Acrobat SDK on http://partners.adobe.com/ - not because you need the contents, but because it has a file (Core API Reference) which is close to 3000 pages and heavily hyperlinked. It works well for me.
Aandi Inston (quite@dial.pipex.com) [A128]
A: I have personally created 10,000 page PDF documents, admittedly on fairly large machines with a lot of RAM (4gb plus). Whilst the PDF specification does not specify a maximum filesize (that I can find), the maximum byte offset for an object reference is a 10 digit number, which means that I would imagine that the absolute maximum file size would be 9,999,999,999 bytes or about 10gb (page 74, edition 2). I think you would have to have a pretty meaty machine to be able to open the document anyway at that point.
Michael Still (mikal@stillhq.com) [A129]
A: We regularly deal with PDFs containing 50,000 to 100,000+ pages, so I think your 1,000-page document will be fine... That said, be aware that Acrobat itself can sometimes have trouble with very large PDF files, especially those a gigabyte or more in size.
Scott Robert Ladd (scott.ladd@maximal.com) [A130]
A: We have created Acrobat documents of up to 20,000 pages (mutual fund statements for archiving) without problems. Files can be several Gb in size, so make sure that you have lots of disk space.
Dan Sideen (dansideen@home.com) [A131]
A: The Count attribute of a Pages tree is a signed 32-bit integer, which implies that it cannot be greater than 2,147,483,647. I doubt you'll hit that limit, though. :-) Distiller will not produce a PDF with more than 32,767 pages, though some other PDF producers do not seem to be similarly limited.
John Doherty (jdoherty@gstype.com) [A221]
Q: Does anyone know why cross-books links (from an index file to another file) will not work on a Solaris machine while they will work on a PC? The naming of the PDF files and the links are all lowercase to avoid upper/lowercase problems. [Q80]
A: To work cross-platform, the file names of the destination files must be stored as "generic" names in the PDF file. If they are platform-specific, they won't work on other platforms.
Helge Blischke (H.Blischke@srz-berlin.de) [A135]
Q: I am trying to understand if there is any paper size limitations for the PDF files. If so, what? My objective is to create postscript files (PS) from all the corporate applications, and then from PS, create a PDF. The corporate applications will include AutoCAD, Word, Images, some Graphics apps and so on. I searched Adobe and many other web sites regarding this, but I could not get any info. Is there anyone out there that has generated PDF's for larger sizes like D or E drawings sizes? [Q82]
A: The PDF 1.2, it has the 200 inches x 200 inches, with the PDF 1.2 having the 40 inches x 40 inches, where it might be 1.3 and 1.2. So, the PDFs can be the size of the drawings.
Ross (apex@calpha.com) [A137]
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