Skip navigation

Am I degrading jpegs in Preview?

238 Views 3 Replies Latest reply: Feb 10, 2013 3:24 AM by davidderrick RSS
davidderrick Calculating status...
Currently Being Moderated
Feb 10, 2013 2:51 AM

Hi. If I edit a jpeg in Preview and then undo the changes before closing it, the document still shows as recently edited in the Finder. Does that mean it has actually overwritten the file?? This is a lossy format and I do not want this to happen if all I am doing is experimenting with possible changes.

MacBook Pro, Mac OS X (10.7.5)


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.