Preview app became really slow when I am scrolling trough some pdf documents and occasionally crashes. I am using Mac OS X Yosemite latest update on MacBook Pro 15 retina 2015.
Does anyone have idea why is this happening ?
iMac, OS X Mavericks (10.9.5)
A Safe Mode boot deletes system caches that may help.
Top left corner of your screen click the Apple > Shut Down.
After your Mac shuts down, wait 10 seconds, then press the power button.
Immediately after you hear the startup tone, hold down the Shift key. You should press the Shift key as soon as possible after you hear the startup tone, but not before.
Release the Shift key when you see the gray Apple logo and progress indicator.
Once you are in Safe Mode, go back to the Apple menu. From the drop down menu click: Restart
About Safe Mode
Preview app crashing
