Adobe Acrobat Reader Pro DC forces me to sign in when opening attachments or PDFs from websites

Hi Daniel

Hope you are doing well and sorry to hear that.  As described you are already signed into adobe and you can access all the  pro features. But when you click on an email attachment it acts like yiu are not signed in.

Are you downloading the PDF attachments to your computer locally or trying to access them directly from the email?

Please try to reboot the computer once and csee if that helps.  Also check for any missisng/pending updates for your computer OS and try updating it.

You may also try to create a new test user profile with full admin rights in Win or enable the root account in MAC and try using the application there and check.

Regards

Amal