I am trying to combine two PDF files, but it says that they are not supported? I scanned them from my printer and can open them with Adobe Reader??? Not sure how I'm not able to combine two PDF files.
What is the exact text of the error message you're seeing?
In Reader, look under File - Properties - Security. What does it say there? Is there a security policy applied to these files?
Can you share these files (or similar ones that have the same issue) with us (via a website like Dropbox, Google Drive, Adobe Cloud, etc.)?
Already have an account? Login
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
AdChoices