Moving to Acrobat Editing and Exporting PDF forum
Steve Werner, Is there a way you could put up a link to that forum? We really need this question to be answered.
This error is an indication of a corrupt PDF. Once it is corrupt, there is unfortunately not much you can do. There will actually be more (much more technical) information when you hold down the Ctrl key while clicking on the "OK" button on that error dialog.
What you can try is to determine on which page of your document you have this problem (assuming that it's just one page that is affected, which may not be the case). I would do that by exporting the first half of the pages and the second half of the pages, and see if one half triggers the error. If both halfs do, then you you are unfortunately out of luck (you could try exporting a quarter of the document a time and see if that gets you anywhere). .
Take that half that shows the problem, and cut it in half again and continue doing that until you have one page that causes the problem.
You can then re-create that one page, replace it in your document and have a uncorrupt PDF file again.
BTW: This problem is not caused by files that are too big. 7000 pages is a small document compared to some documents I've worked with. This old post discusses the maximum file size for PDF files: Is there a PDF size limit?
There is a PDFMaker in Acrobat for Outlook and Lotus Notes. The versions that are supported depend on you version of Acrobat, and you can find out more here: Compatible web browsers and PDFMaker applications
khkremer, thanks for the reply. I really need something that works with mbox. Do you know of anything?
No, I don't know of such a tool.
I did a quick Google search and found a number of tools, but again, I don't have any experience with any of these.