By default, Chrome uses a built-in PDF viewer to open PDFs. If you've disabled the built-in PDF viewer, Chrome will use Adobe Acrobat or Adobe Reader to display PDFs. Follow the suggestions below if you're having trouble viewing PDFs within Chrome, using Adobe Acrobat or Adobe Reader.
First check if the issue is specific to Chrome. Try opening PDFs in another browser on your computer, such as Firefox. If you experience similar problems viewing PDFs in another browser, the issue is likely not related to Chrome. Please visit the Adobe support site for additional help.
If the issue is specific to Chrome, try the following solutions in the order that they're listed:
Check for updates to Chrome, Adobe Reader, and Acrobat.
Check your Adobe Reader and Acrobat settings.
Repair your Adobe Reader or Adobe Acrobat installation.
Uninstall either Adobe Reader or Adobe Acrobat.
Uninstall and reinstall Adobe Reader and Acrobat.
If you're still unable to open PDFs in Chrome after following the suggestions listed above, try searching the Chrome help forum to see additional tips from other Chrome users.
For more information/ source: https://support.google.com/chrome/answer/142056?hl=en