Most of the time this is helpful, as it writes the missing data in the image file, which might be absent in the original file. Make some minor change and 'Save As' the photo to the same location, overwriting the original file.
MAC SCREEN SAVER TIME GREYED OUT HOW TO
For information about how to switch libraries, see System Photo Library overview and Create additional photo libraries. To use the currently open library as your System Photo Library (which allows you to use it with iCloud Photos), click Use as System Photo Library. If the Use as System Photo Library button is grayed out in Apple's Photo app, that means the current library already is the System one & you should be able to open anything in it with Affinity Photo from either the Media Browser (on the View menu) or from the regular open dialog by scrolling to the Media category in the sidebar & selecting Photos from that To view the location of your Photos library in the Finder, click Show in Finder.
Keep holding the key until you see the Choose Library window. While holding the key, open Photos on your Mac. Open another Photos library If you have multiple libraries, here's how to open a different one On your keyboard, press and hold the Option key. Then choose Finder > Empty Trash to delete the library and reclaim disk space. In a Finder window, go back to your Pictures folder (or whichever folder you copied your library from) and move Photos Library to the trash. In the first option under Library Location there are two options 1 - Show in Finder 2- Use as System Photo Library. Go to Preferences in Photo and a box pops up headed General. Select iPhoto from the top left of the Menu bar After Photos opens the library, choose Photos > Preferences from the menu bar If the iPhoto Library is grayed out when selecting from the Other Library menu, follow these troubleshooting steps: Ensure that iPhoto is of Version 9.5 or Later Open your iPhoto application. Choose the library you want to designate as the System Photo Library. One of the photo libraries is already designated as YourLibraryName (System Photo Library). Hold down the Option key and open Photos.