Thanks for asking, Paul. Let me give more detail on the two questions:
We've received a lot of complaints from all over the world that recipients where not able to open our PDF form.
A portion of these complaints were resolved after we explained recipient that they had to upgrade to at least Adobe Reader version 7 or newer.
However, other recipient complained that they were still unable to open the form even with the latest version of Adobe Reader. These are the ones that we're concerned about. We don't know why they are having problems. Apparently, our files works on a number of computers with Readers versions 7, 8, and/or 9. But not on all.
Is it that the recipient who can't open the form have not installed their Reader properly? We don't know. Or is it that the form or form-generating software has some bug that causes problems on some configurations but not on others?
The behavior is not consistent. What worries us in particular, are recipient reporting that they can open normal PDFs but not this form.
One had the computer crashing, others got simply messages that they couldn't open the file.
Any ideas about the possible causes? Anyone similar observations?