When it does, go ahead and release the COMMAND and TAB keys. Press and hold COMMAND + TAB to bring up your Mac’s application switcher, then keep tapping the TAB key while still holding down the COMMAND key until the selector lands on Finder.Note: Make sure to back up your Mac before messing around with any system files. ~/Library/Preferences/ any old Adobe PDF Viewer plug-ins into the Trash, then restart Safari. From the menu bar, click Go and Go To Folder.You may be having this problem because your Preview preferences files might become corrupt.

Please note that this process may take more than one hour.ĥ. Select your disk from the left menu and then click First Aid and then click Run. You can also use Spotlight to find and launch the app. Open Disk Utility (Applications / Utilities) on your Mac. And test again if the Preview app is working or not.Ĥ.Either case, exit safe mode by restarting your Mac normally (do not press and hold the Shift key).Try opening a file using Preview in safe mode, does it work?

Keep holding the Shift key until you see the login screen, then release the key.

Turn on your Mac and immediately press and hold the Shift key.

You can restart your Mac by going to Apple meu and Restart.ģ. After restarting my Mac, I was able to open my files again using Preview.

Click Force Quit or you may press the Option, Command, and Esc (Escape) keys togetherĢ.

Note that doing so may cause you to lose unsaved changes if any. If Preview does not quit, or if you could unable to quit the app, try force quitting the app. Then now try to open a file that you could not previously open. Quit the Preview app and then re-open it. If you prefer, you can check the “Automatically keep my Mac up to date” to have your Mac update automatically.ġ. If there is an update available, click the Update Now button and the new software will be installed on your Mac.

On your Mac, click Apple menu > System Preferences and then Software Update.

Please try the steps below and after each step test to see if your issue is fixed:īefore doing anything, make sure that your Mac is up to date. If you’re having trouble opening some of your photos or PDF files using Preview, and this article may help you. See also: PDF Won’t Open: “Please Wait…” Message, How To Open Preview on Mac is the default image and PDF viewer app that lets you view and edit various file types including PDF, JPEG, PNG, PSD, and TIFF. When I tried to open photos or PDF files, the file did not open and I was getting the same message saying “The file “macReports” couldn’t be opened. The Preview app stopped working suddenly. Yesterday I had this problem while using my Mac.

Cant open pdf mac