Without seeing one of these PDF files that cause "problems" it would be very difficult to know what is really going on. For what it is worth, some of the current "clone" PDF readers (including the Mac previewer) have problems with perfectly valid PDF files from Acrobat (or exported from InDesign and Illustrator). So ... I suspect you are doing about the best you can by urging users to newer versions of Reader. Note that if I was saving PDF files for the general public and I didn't have need for features such as JPEG 2000 compression and some of more sophisticated internal compression of objects in PDF 1.5 (Acrobat 6), I would save to Acrobat 5 compatibility.
- Dov > -----Original Message----- > From: Diane Gaskill [mailto:dgcaller at earthlink.net] > Sent: Sunday, August 05, 2007 4:21 PM > > Dov, > > Amazing. You described the exact problem we are concerned about at my > company (and why I left Acrobat 5 on my system). We are using Acrobat 7 but > set the compatibility to Acrobat 6 in case some of our users are using an > older version. But even so, we are getting some complaints from the field > that they can't open the PDF files. After much discussion about setting the > compatibility back to Acrobrat 4, we decided instead to put a note on the > web page telling them to upgrade their copy of Reader if they are having > trouble opening the files. We included the link to the Adobe download page > to encourage them to do it. This is much better than conpromising the > quality of the manuals because a few people have not updated their systems. > > The puzzling part of the problem was that I was able to open the files on a > system that has only Acrobat 5 installed. I got a warning message saying > that some features might not be displayed correctly but the file did open. > The support guys at my company could not open the files at all. If you have > any ideas on what the problem might be, I'd appreciate it. Is there a > difference between how Acrobat looks at a PDF file (for reading) than Reader > does? > > Thanks, > > Diane (cleaning system now)