Category Archives: Data Validation

Rebuild Lightroom Previews to save space, add speed and confirm integrity

I have a new article up on Petapixel that outlines the benefits of a full rebuild of Lightroom previews.

  • Your catalog may be significantly smaller. My two main catalogs decreased in size from 600GB to about 200GB.
  • You may see a speed increase in scrolling – I saw a marked increase.
  • You will be informed if Lightroom fails to rebuild any previews, which may be an indication of a corrupted file (It could also be a file that Lightroom can’t open). The process correctly identified a handful of known-corrupted files that I use for testing.
  • Read the entire article here.

Note that I have outlined a specific work order for this, which I suggest following. I’d love to hear about anyone’s results, either confirming or conflicting with the results I got.