Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

55 points

How do you rebuild all thumbnails?

I read in this forum that the latest update would reduce the size of the thumbnails directory and in some cases even quite a lot. My thumbnails directory is 9GB for 10,000 pictures so I figured I would give it a shot.

Only I can't figure out how to rebuild all thumbnails. I googled but didn't find anything related to thumbnails.

I did try however, to select all pictures and "update previews" - it took a few hours, but my "thumbnails" folder in the "Aperture Library" package remains the same.

MacBook Pro 15" Unibody, Mac OS X (10.6.2), JBL! Creature2 + Apple Keyboard + Mighty Mouse + iPhone 3GS

Posted on Apr 7, 2010 2:32 PM

Best reply

Rick Lang

Level 4

1,236 points

Posted on Apr 7, 2010 2:51 PM

In Aperture's Photos menu, look for menu item "Generate Thumbnails". I believe you need to select all the images for which you want thumbnails. Likely you could select project by project or at the library level.

View in context

17 replies

Rick Lang

Level 4

1,236 points

Apr 12, 2010 2:42 PM in response to Kawanaut

When I rebuilt my thumbnails (by deleting the Thumbnails directory, I saved 40% in my space usage for the thumbnails - I think they were in better shape to begin with than many others have found.

Apr 27, 2010 6:57 AM in response to Rick Lang

Many thanks to Kawanaut et al for this tip -- agree that it should definitely be a sticky!

My 31.5 GB Aperture3 Library (with 24,000 images, and referencing a separate Master Images folder) had a Thumbnails folder weighing in at 20.8 GB. Trashing it, then launching Aperture and leaving it overnight, has resulted in a new Thumbnails folder of under 13.4 GB -- 7.4 GB (about 30%) less than before.

And these days, every little Gig helps.

John B
Toronto

How do you rebuild all thumbnails?