I have a group of users who are unable to access PDF Files in a Specific Folder in SharePoint 2010

They are however able to open PDF Files from emails, desktop, other shared folders and other folders in SharePoint 2010. See the error message below.

Error Message:

There was an error opening this document. File open failed.

Note the users are currently using Adobe Acrobat X PRO.  Could this be a permission issue in SharePoint?

Regards,

Hello CDS3,

I don't know if this would be a permission issue.

But it would be worth a shot to take a look at the ULS logs in SharePoint. Especially if you can reproduce it. 

Hello,

In addition to permission, are you able to open same PDF from other folder or library? Just download PDF file using windows explorer and upload in any library folder and open it.

Since you are able to open other PDF files so i suspect that there is issue with specific file only. You might also try to same file in different browser.

Thanks Guys for your responses, I will check these options. 

Did you ever find out what the issue was?  I'm having similar intermittent issues with my users.

This issue arises when there are certain characters in the file name such as an apostrophe. The SharePoint fileopen class/active x cannot handle it. See if you can change the filename in SharePoint and hopefully you will be hunky dory.