When using Chrome version 49 on a Mac, PDF files and print preview images do not display properly.
When using Google Chrome version 49 on a Mac, PDF files and the print preview image may not display correctly. The image may not appear at all, display only a small strip of the image, or portions of the image may appear and then disappear or flash when scrolling through the file.
To restore the full image, a setting needs to be changed in Google Chrome preferences.
Open Chrome. Select Chrome in the menubar and then select Preferences... from the drop down menu.
Scroll to the bottom of the preferences window and click on Show Advanced Settings...
Scroll to the bottom of the preferences window. In the Systems section, uncheck the box next to Use hardware acceleration when available.
Restart Chrome. The Print Preview window should display correctly.