Back in April 2008, "Chris" reported getting the "The document could not be saved. There was a problem reading this document (114)" error message when trying to save a document created in PDF from Paperport. I've just encountered the same problem. I read "ppdesigner"'s reply, and don't believe it helps.
I had been converting a number of documents previously saved in the inherent Paperport ".max" format to PDFs. I had successfully done so with approximately 30 pages, often grouping several into a single PDF file. Suddenly, one page, and only that page, of a three-page document, generated the same error condition. I tried OCRing the page into Word, but I lost the pictures; the OCR function didn't do particularly well anyway.
Pertinent (or not) info:
Acrobat Professional 6.0.6, with all current updates
Windows XP SP2 with all updates
Document no longer available to rescan
3.0 GHz Pent IV CPU; 3GB RAM
Thoughts, anyone? Chris -- did you ever solve your problem?