Preview not saving edited photos (JPEGs) on MacBook running OSX 14.0 (Sonoma)

MECIdaho wrote:

Help! I have the same problem and have a deadline for a newsletter I edit in a couple of days.

It would be better if you'd open a new thread explaining your specific problem for users to help you.

Same problem here on Sonoma 14.1.2. Cannot save a cropped JPG image with cryptic error message "The document could not be autosaved." This after attempting to manually save the file. After attempting to duplicate the file, get error message "The operation could not be completed." Export to a different JPG file name in a different folder locations fails with "Could not be exported". Office apps are able to save, so problem appears to be due to an issue with Preview.

The only thing that worked for me was taking a screen shot of the image that has been edited. It did save my changes. Also exporting to PDF and back to JPEG works but too confusing. I read somewhere Apple isn't supporting 8 bit grayscale. Is this true?

Property inspector won't allow you to change to RGB which would be what to do. RGB isn't in the drop-down menu. Any suggestions on how to apply a new profile? Could the app Color Sync work and what are the steps to do it.

I updated to 14.2.1 yesterday and it made no difference. I think the problem is related to the grayscale color profile. Unfortunately you can't change it to RGB in Property Inspector. Did anyone report this to Apple?

Thanks !! for information about the grayscale issue. I used a photo scanner for black and white film and used 16-bit grayscale. I didn't realize that the problem was connected to jpeg in black and white. Does the problem exist for all types of black and white jpeg files?

Hopefully the problem will be fixed in the next release...

None of us have any knowledge of Apple's plans.

If this was an oversight, or a deliberate choice, only Apple knows.

You could use the feedback page to let Apple know that support for this is desired.

https://www.apple.com/feedback

I just updated to OS 14.2 The Problem with Preview got WORSE. Before I would edit my photos and it wouldn't save them. NOW it won't even let me edit them, the "tools" are greyed out!

I do fairly intense photo editing and use other tools, but frequently all I need is Preview to slightly adjust the contrast or temperature and I don't need to open the pic in full blown photo editing software.

What the heck, Apple??? Why is Preview not working???

PS, although I appreciate the work-arounds listed above (export as pdf and re-import as jpg) that's ridiculous for my work.

Exporting saved photo as a PDF, then back as a jpeg, This option worked, but, it's not an ideal workaround. Apple could not help on this first attempt other than suggesting that I have the latest version, which I do, and then reloading operational software, they didn't even seem to know this was an issue, Not doing that just yet. Like everyone else replying, I noticed this started on recent software updates beginning with 14.2 I believe.

I upgraded to 14.3 2 days ago, and my problems (color only, I haven't really used greyscale - however the problems I was experiencing were the SAME) - 14.3 seems to have solved the problem and it's apparently an important security update.

I upgraded to 14.3 2 days ago, and my problems (color only, I haven't really used greyscale - however the problems I was experiencing were the SAME) - 14.3 seems to have solved the problem and it's apparently an important security update.

Taking a greyscale jpg and adding a color profile triples the size of the file. It does then make it possible to do 'normal' edits with Preview, but Preview is still incapable of saving an edited greyscale file.

not unlikely at all- I am scanning many years' worth of black and white negatives (for which I don't want colour information) so the scanner is set at 16 bit greyscale which is good enough for a first pass on all of the film and then if there are any good frames I can redo those with more detail later. I am having the same issue with autosave not working on greyscale but any colour files from scanned colour negatives or slides are still autosaving properly. I usually only use Finder to rotate the images to the correct orientation, any other editing is in photoshop or Lightroom. I'm currently on Sonoma 14.2.1 anyway

Same issue here. Scanning (tons of) docs to a file, trying to rotate scans to correct orientation. Originally scanning in BW, preview refusing to save file so changed to colour - seems it likes the colour images but not the BW.