Problem opening PDFs from emails

[AdrianBI]

Recently my Windows 10 computer will not open PDF files attached to Emails. I get the following message 'There was an error opening the document. The file cannot be found'. I can open PDFs on my hard drive or OneDrive. I managed to open the docs on another Windows 10 computer and saved them to OneDrive. I can open them from there on this computer.

How do I fix this problem?

[Dave__M]

I am curious what email program are you using.  Is it a web-based email system like gmail?  If web based, it may be a conflict with a browser's attempt to show the pdf in its own preview method.

My best,

Dave

[Dov Isaacs]

If you are using an e-mail client such as Microsoft Outlook, when you double-click on an attachment, a copy of the file is placed in a work directory such as

C:\Users\username\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\######## where username is your windows user name and ######## is a random 8 character value. If there are “permissions issues” such that the e-mail client cannot write the file to that directory or that Acrobat / Reader cannot fully and properly open the file, it might explain the message you are receiving. This is not really an Acrobat issue as much as a file system permissions issue.

             - Dov