Skip navigation

Thumbnail Previews not showing up

20232 Views 26 Replies Latest reply: Jan 19, 2014 2:07 AM by McHartsa RSS
  • Kirby Krieger Level 6 Level 6 (11,570 points)
    Currently Being Moderated
    Apr 9, 2011 9:10 PM (in response to macorin)
    I agree with all you've said. But we've narrowed down the source of the problem.

    What camera?
    What settings?

    Is the firmware up-to-date?

    Does this happen to all JPGs from this camera? What is different about these JPGs? (Are they part of JPG+RAW pair? Do they include any unusual in-camera processing? Etc.?)
    MacBook Pro 13", Mac OS X (10.6.7), 4 G / 500 G internal / 4 TB external / NEC 2490 / ColorMunki Photo / Sony a850
  • Kirby Krieger Level 6 Level 6 (11,570 points)
    Currently Being Moderated
    Apr 10, 2011 7:23 AM (in response to macorin)
    Mac -- I'm getting confused (again) reading your response. As far as I know -- and Frank has stated the same thing -- Finder and Aperture (totally different applications) don't share any privileged information. The Finder preview, shown in the Info pane and in some Finder browser views, has nothing at all to do with the Previews in Aperture. Your problem is +"JPEG previews not showing in Finder".+

    I'm sorry that we seem to be talking past each other. Sometimes the limitations of typing to communicate become too apparent.

    Aside from all that, there is also the question of why seeing Finder thumbnails of images already imported into Aperture is important to you. Obviously it is -- but if you have the enormously better image management tools of Aperture available, why worry about the clunky tools Finder provides (or doesn't)?
    MacBook Pro 13", Mac OS X (10.6.7), 4 G / 500 G internal / 4 TB external / NEC 2490 / ColorMunki Photo / Sony a850
  • Kirby Krieger Level 6 Level 6 (11,570 points)
    Currently Being Moderated
    Apr 10, 2011 7:35 AM (in response to macorin)
    OK -- one other thing to try occurred to me. You might move/delete/rename the hidden file ".DS_Store" from the folders where you are having problems. You can show hidden files using Finder's search and adding the "File Visibility" filter. Then reboot, or Force Quit Finder.

    I don't know what additional repercussions this might have, so proceed at your own risk. (I don't think there is any -- but no guaranties.)

    Message was edited by: Kirby Krieger
    MacBook Pro 13", Mac OS X (10.6.7), 4 G / 500 G internal / 4 TB external / NEC 2490 / ColorMunki Photo / Sony a850
  • Neatboy Calculating status...
    Currently Being Moderated
    Apr 24, 2012 9:06 AM (in response to macorin)

    I have had this problem before, so annoying.


    I just opened Terminal and then typed:


    killall Finder


    After you press return it shuts down Finder and then you just restart it. Should work?...

  • jaydobro Calculating status...
    Currently Being Moderated
    May 14, 2012 9:40 AM (in response to macorin)

    I had a very similiar issue, but my problem was that many .eps files did not generate previews instead of your issue with .jpg images.  I tried all of the above solutions and nothing worked.  I even opened the files in Illustrator and resaved while ensuring the generate thumbnail option was checked.  This did not work either.  After some additional research, I found a reference to a Quicklook folder (library > Quicklook) where there is a list of Quicklook plugins.  In this folder I only found a plug in for iWork files.  This seems odd since preview seems to work for just about every file type except .eps, but the only program specific plug in listed was iWork.  So I looked for a plug in for QL that would preview eps files.  I found "EPSQuickLookPlugIn".  I installed the plug in which sort of worked.  It generated a preview, but the image would show up in the bottom left hand corner of a preview with a lot of extra white space.  Looked like an image in the bottom 2" corner of an 8.5"x11" document.  This wasn't really ideal either, so I deleted the plugin from the Quicklook folder.  And POOF! All .eps files were generating previews again and in the correct dimentions with no extra white space.  I don't know what installing and deleting the QL plug in did, but it worked like a charm. 

  • trentfromsa Calculating status...
    Currently Being Moderated
    May 21, 2012 10:15 PM (in response to jaydobro)

    My thumbnails on all files were not showing a preview in thumbnail form.

    I used disk utility and verified permissions and repaired permissions on my HD.

    Once done I restarted and boom, fixed the issue.


    I was also having performance issues with finder running slow and taking it's time showing files etc.

    Seems to have fixed this too.



  • kabana0 Calculating status...
    Currently Being Moderated
    May 24, 2012 6:36 AM (in response to macorin)

    I've had this happen and relaunched Finder. Not sure you have the same problem, but all my thumbnails returned. Easy to try.. Press command/Option/esc keys to open the Force Quit Applications window. Highlight Finder and hit relaunch.

  • ziggy1903 Calculating status...
    Currently Being Moderated
    Jan 8, 2013 7:35 PM (in response to macorin)


    I see this is a problem from 2012 and for Aperture, but I was searching about how thumbails in my folders for my JPEG images have turned generic... I am on an iMac 27" 2.7GHz Intel Core I5 = 12GB RAM = Lion 10.7.5

    The problem was after I did some editing with Adobe Bridge CS6 - speficially when I did a batch rename of the images.

    The thumbnail and preview still show up fine in the Bridge program, but when I open the folder in the Finder, they show as generic. What is worse, is that not every file was affected. If it was a consistant issue, I am sure it would be easier to fix. So only some of the files have the generic icon now. All of the fixes above do not work...

    As for opening images and saving them again, a huge HUGE frustration with the new OS is that they took away the 'save as' feature in Preview... so I have to first duplicate the file, then hit save, which then will not save back to the original folder... so unless I make up some Automater script, that will be a huge pain.



  • ladyruth54 Calculating status...
    Currently Being Moderated
    Jan 11, 2014 8:15 PM (in response to macorin)

    I'm not a technical person so I don't even know what some of the responses you got already mean.  However, I had the same problem you had and I was able to fix it.  Luckily, it was only three or four pictures.  I opened them up in preview, clicked on File, Duplicate, and then renamed the photo and changed the setting to "Best."  I then moved the original photo to the trash can and all of my pictures now show a thumbnail picture.  But seeing as how this thread is more than two years old, hopefully you found a solution already.

  • McHartsa Calculating status...
    Currently Being Moderated
    Jan 19, 2014 2:07 AM (in response to macorin)



    I had also the same problem, "anomaly" that about half of the thumbnails in Finder were missing. There were standard JPG icons instead. As Kirby mentioned, the hidden ".DS_Store" file could cause the problem. So I checked the folder and found that the "anomaly" folder did not had the ".DS_Store" file at all, while other folders had this file. But then I copied the whole folder to my Desktop and voila, all the thumbnails of the copied folder were there. Then I replaced the original folder with the copied folder and problem was solved. But still the ".DS_Store" file was missing from this newly created copy folder.


    It seems the problem is related how you copy the files to the folder. I copied the files from several separate folders. So when I added new pictures to the folder, the thumbnails of added files were not created automatically. But when copying the whole folder to the Desktop, all the thumbnails were created to the new folder. Hopefully this is helpful.




1 2 Previous Next


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.