Catalog size is more than 4GB

Question

I am using an iMac and my catalog size is larger than 4GB! Therefore it will not back it up. I get the message to use a 3rd Party utility such as 7-zip or StuffItExpander to extract my catalog backup. BUT!!! It Adobe doesn't tell me how to solve the problem and more importantly HOW TO DO IT!!

Rob_Cullen · Accepted Answer

There is a bug in Lr- Mac Users on Backing Up: “Your Catalog Size Is Larger than 4 GB” | Laura Shoe's Lightroom Training, Tutorials and Tips

This link explains it.

It is unlikely your catalog is >4Gb anyway. (Previews probably- but not the problem)

You would only need an 'expander' program IF you have to recover from a backup (such as after a crash or corrupt catalog), AND the catalog is >4Gb, AND your OS will not extract from a zip file.

BKKDon · Answer

Hi,What are you saying here ... are you trying to recover a catalog from a backup? Or are you trying to backup a catalog from Lightroom?What version of Lightroom are you using?If you need 7-zip or StuffitExpander just download from the internet.Look at this explanation from Adobe: Extracting compressed Lightroom catalog backups larger than 4 GB on Mac

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