Then wait for the computer to power off and on again. Open the Apple menu and choose to Restart your Mac. The easiest way to fix most minor problems with macOS is to restart it, allowing the operating system to start up properly again. The principle here is essentially the same: Preview might be failing to open because your Mac operating system has started misbehaving.

If restarting Preview didn’t work, try restarting your Mac instead. This should close down the app even if it had frozen.Īfter successfully closing Preview, try opening it again to see if it works now. Then select Preview from the list of open apps on your Mac and choose to Force Quit it be warned, you’ll lose any unsaved progress when you do this. In that case, open the Apple menu and click Force Quit.

However, this may not work if Preview isn’t responding. The safest way to close an app is to click Preview > Quit Preview in the menu bar. This allows Preview to uncross its wires and start afresh, hopefully working better on your Mac this time. Whether Preview is frozen or whether it’s refusing to open an image file, the first step to take is to close the app and start it up again.

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Luckily, there are a few different tricks you can use to fix Preview when these problems crop up. You may also see similar error messages when Preview freezes, refuses to load certain files, or starts responding slowly.

You can’t open the application “Preview” because it is not responding.

The application “Preview.app” is not open anymore.

When Preview fails to open, you might see one of the following messages: If Preview fails to open, you might find you can’t load PDFs, JPEGs, PNGs, and other images anymore. Preview is the default app for opening most image files on your Mac.

Pdf will not open on mac