Unsupported file type: This is the most common reason you cannot open PDF. Occasionally some files may erroneously have the default application set to Adobe Reader. This problem is usually an inadvertent human error. Outdated Acrobat or Adobe Reader: An outdated Adobe Reader or Acrobat program will throw this error.
There are a number of reasons why PDF files may refuse to open. The PDF file may be password-protected, damaged, or incompatible with Adobe Acrobat. Your installation of Adobe Acrobat may also be out of data or damaged, which may cause problems when you try to run it.
1) You should first go to Settings > Application Settings. Uncheck the box for PDF Viewing. 2) If that does not work, then in Adobe, go to Edit > Preferences > Internet and look under the Web Browser Options you will need to make sure you have it set to "allow web viewing."Dec 16, 2021
Repair Reader or Acrobat(Reader) Choose Help > Repair Adobe Reader Installation.(Acrobat) Choose Help > Repair Acrobat Installation.Jan 7, 2022
Occasionally, you might face issues when downloading Acrobat Reader. Typically, this occurs for one of the following reasons: Your computer is not connected to the Internet, or there is a problem with your Internet settings. Your antivirus software needs to be updated.Jan 7, 2022
Open Acrobat or Acrobat Reader. ... In the Preferences dialog box, choose General in the Categories list, and then select the Enable PDF thumbnail previews in Windows Explorer check box. ... Click OK.Wait for a few seconds while Acrobat is configured to show thumbnail previews in Windows Explorer.Jan 12, 2022
In Outlook, navigate through “File > Options > Trust Center > Trust Center settings > Attachment Handling” and:Make sure that “Turn off Attachment Preview” box is unchecked.Click “Attachment and Document Previewers” button and check if “PDF Preview Handler” is enabled/ticked in the list in the opened window.Sep 25, 2019
In order to preview PDF files, use the following steps.Close Outlook.Download and install Adobe Acrobat Reader.Make Adobe Acrobat Reader the default program used to open PDF files. Select your operating system below for detailed instructions. ... Restart Outlook. You should now be able to preview PDF files in Outlook.