- Right-click the thumbnail of a PDF file, and then choose Properties.
- In the file's Properties dialog box, click Change.
If your computer settings are managed by a system administrator, you may not see the Change button. Sign in using an administrator account or contact your administrator to get the button enabled.
- Do one of the following:
If you have Acrobat DC or both Acrobat DC and Acrobat Reader DC, choose and click .
If you have only Acrobat Reader DC, choose and click .
- In the Properties dialog box, click OK.
Now, the PDF files open in Acrobat Reader DC or Acrobat DC