Can I still adjust the color of jpg files with Preview?
For years I've used Preview to make slight adjustments to the exposure levels and white balance of my jpg images. Today I opened an image and tried to lighten the shadows, but when I went to Tools > Adjust Color, the window looked like the attached image--greyed out, so that I couldn't make any of the adjustments I wanted.
I recently started using Adobe Lightroom to import my photos, then save them to folders on my mac. And I fairly recently updated to OS Mojave 10.14.6, which is about as much as my laptop can handle.
Can anyone tell me how I can go back to using Preview the way I always have?
MacBook Air