Acrobat 5.0 compatibility with Acrobat 6.0

[Lisa_Hart@adobeforums.com]

We have Adobe Reader 5.0 and Acrobat 5.0 deployed at our company. We are starting to receive pdf files created in 6.0 that will not open. In addition, I have a few users that want to upgrade to Acrobat 6.0 for new functionality but we aren't ready to upgrade the entire company. Of course I am concerned about backward compatibility since we are experiencing some problems opening 6.0 pdf files (although only some...some work fine). I haven't been able to find anything on backward compatibility in this area. Can any help with this issue? Thank you. Lisa

[W_T_Allen@adobeforums.com]

Acrobat 6 has the ability to save PDF versions 1.5, 1.4, and 1.3 (Acrobat 6, 5, and 4.)