1. On your computer, open Chrome.
  2. At the top right, click More More and then Settings.
  3. At the bottom, click Show advanced settings.
  4. Under "Privacy," click Content settings.
  5. You can change the following content setting:
  • PDF Documents. By default, Chrome opens PDFs in the Chrome PDF viewer. To use your computer's preferences for PDFs, check the box next to "Open PDF files in the default PDF viewer application."