If you encounter issues during the update process, try these troubleshooting tips:
If you are using this for professional work, Adobe strongly advises upgrading to or subscribing to Acrobat Pro DC (Subscription) . Using the 2015 version poses a security risk, especially when handling PDFs from unknown sources.
After updating Adobe Acrobat Pro DC 2015, the following steps were taken to verify that the update was successfully installed and functioning:
Note: Acrobat Pro DC 2015 is legacy software. Adobe no longer supports it with new features; updates addressed security/bug fixes while it was supported. If you must update a 2015 installation, follow these steps.