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Reducing library size - Help #1
John Milton's picture
by John Milton
November 11, 2012 - 2:26am

I maybe missing something but I have a 320gb library & wish to reduce the size - dramatically. Reading the article of the same name I have followed the instructions, but dont seem to be able to delete the previews. I have tried time & time again but they are still there & my library refuses to reduce in size. I have unticked the required item in preferences & unticked main previews in the gear menu & then tried to delete all previews.
Is there an update to the instructions or an item I am missing?



John Russell's picture
by John Russell
November 11, 2012 - 2:57am

This may be a really naive answer, but I’ve forgotten to empty the Aperture trash more than once and wondered why things weren’t as expected.


John R.

- - Retiree having fun - -

John Milton's picture
by John Milton
November 11, 2012 - 12:24pm

Thanks for the reminder, I hadn’t done that for a while. It brought it down by 12GB but I still can’t get stop the previews. Every little helps though…

Cheers. John

David Edge's picture
by David Edge
November 11, 2012 - 5:25pm


Suggest a repair to the database - Cmd-Option click on Aperture and select the middle option.



John Milton's picture
by John Milton
November 11, 2012 - 6:45pm

Thanks David
I’ve actually done that a few times recently. I have had a few database error messages recently as I had the external drive in a hub which went wrong & wrongly ejected it causing the database to be corrupted. I’ve repaired & rebuilt!!


John Milton's picture
by John Milton
November 16, 2012 - 12:01am

Does anyone have any further suggestions on what I’m doing wrong or can do to resolve this problem. Thanks.

Scott Davenport's picture
by Scott Davenport
November 16, 2012 - 3:10am

I had some difficulty getting previews disabled and deleted in my library. But what you’ve described matches what I did. Just in case, here’s the exact steps I used:

Turning off preview generation…
- In Aperture Preferences, click Previews and deselect ‘New projects automatically generate previews’.
- In the inspector, click the Library tab and select Projects. Click the gear icon and deselect ‘Maintain Previews for All Projects’.

To delete existing previews…
- Click Photos and clear any filters in place.
- From the menus, do Stacks -> Open All Stacks.
- Next, ⌘A to select all the photos.
- Finally, do Photos -> Delete Previews

The stacks thing is something I forget more often than I’d like to admit.

John Milton's picture
by John Milton
November 24, 2012 - 12:13am

Hi Scott

Many thanks. I have followed your advice, & Ive got the size down to 289 GB. It appears to delete previews for about a minute & then stop. Ive tried a couple of times but no difference.
Many thanks. John

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