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Is there a PDF size limit?

Jul 27, 2012 6:09 AM

Tags: #acrobat_pro_x

Is there a recommended maximum size (in pages or MB) for a single PDF file?

We have very large (10,000+) page PDFs that are being created, and we keep running into problems with file corruption. I'm not sure its related to the size of the PDF, the fact that it is created using various other scanned docs, or because the original was in Acrobat 8 and we're now adding to it using Acrobat X.

 

Any suggestions?

 

thanks

 
Replies
  • Currently Being Moderated
    Jul 27, 2012 1:02 PM   in reply to DP-HPS

    There are maximums, but it is not 10,000 pages. It is larger. But the problem with large documents formed from scans is that you may be taxing your system. Why do you feel the need to have a 10,000+ page document. Especially, one that consists of scans. With scans unless you have ocr'd the documents you cannot search the contents. You can setup a table of contents pdf and use links to get from one document to another. If you are running into corruption problems, you loose the entire document. If you have smaller files, then if corruption occurs you can restore the smallest part from backup or regenerate as needed.

     
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  • Currently Being Moderated
    Jul 27, 2012 1:54 PM   in reply to MichaelKazlow

    There's no explicit page number limit but there is a limit on indirect objects of 8,388,607 in a 32-bit PDF rendering application - Acrobat and Adobe Reader are both 32-bit code - and because each page consumes at least one indirect object, every PDF file created by or opened by Acrobat must have less pages than that. If you were to create a native x64 PDF application you could add more pages, but the resulting files wouldn't open at all in 32-bit apps.

     

    Architecturally there is only one limit in the PDF standard: the overall file size must be below ~10GB as the cross-reference tables which define the PDF structure use 10 bits.

     
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  • Currently Being Moderated
    Jul 27, 2012 9:17 PM   in reply to Dave Merchant

    When you get to extremely large sizes, you limit the usefulness of the document. You might be the only one with enough memory and harddisk space to open the thing. So the practical answer is much lower than the limit in terms of size. The limit is in useful content and ease of use. It is a lot simpler to create a sequence of PDFs and link them. For a book, it might be by chapter. For archived documents, it might be by month or such. In any case, a huge document becomes useless fast, even if it is technically possible to make it that large.

     
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