Reproduction: Open any pic, e.g. a JPG. File - Save as, choose format PDF, save. Open in Adobe Acrobat 6, it's displayed fine. File - Save as, try to save it and you'll get the error message "The document could not be saved. There was a problem reading this document (135)." In Acrobat 5, it's 113 instead of 135. Searching the web, I only read about "pdf with images" or "unicode and/or space with embedded fonts" being a possible cause.
pdf bug.zip consisting of source JPG, exported PDF and repaired PDF are available for 90 days. If anyone wants to put it on long term available web space, feel free to do so
