Important information for all platforms

  • Do not delete database files.
  • Do not delete Lightroom 3 catalog files that end in -journal. Journal files are temporary files that allow the database to be recovered in a crash.
  • If possible, back up files on a different hard disk or volume from the disk where your catalog is located. For more information on backing up in Lightroom, see Backing up the catalog in Lightroom Help.

File locations in Mac OS X 

  • The Photoshop Lightroom application is the Adobe Lightroom 3.app file, located in the Applications folder.
  • The preferences file is the com.adobe.Lightroom3.plist file, located in [user name]/Library/Preferences.The [user name]/Pictures/Lightroom folder contains:
  • Lightroom 3 Catalog.lrcat, the Lightroom database file
  • Lightroom 3 Catalog.lrcat.lock, which prevents you from overwriting data
  • Lightroom 3 Catalog Previews.lrdata. which contains preview data for your photos
  • Catalog backups are saved to [user name]/[catalog location]/[catalog name]/Backups/.
  • Installed and custom presets and templates have filenames ending in .lrtemplate and are located in the [user name]/Library/Application Support/Adobe/Lightroom folder.
  • Registration data is in Library/Application Support/Adobe/Lightroom/.

 

Important: Apple made the user library folder hidden by default with the release of Mac OS X 10.7. If you need access to files in the hidden library folder to perform Adobe-related troubleshooting, see Access hidden user library files.

File locations in Windows XP 

  • The Photoshop Lightroom application is the Lightroom.exe file, located in the Program Files/Adobe/Adobe Photoshop Lightroom 3 folder. 
  • The preferences file is Lightroom 3 Preferences.agprefs, located in Documents and Settings/[user name]/Application Data/Adobe/Lightroom/Preferences. 
  • The Documents and Settings/[user name]/My Documents/My Pictures/Lightroom folder contains:
    • Lightroom 3 Catalog.lrcat, the Lightroom database file
    • Lightroom 3 Catalog.lrcat.lock, which prevents you from overwriting data
    • The Lightroom 3 Catalog Previews.lrdata folder, which contains additional folders for preview files and data
  • Catalog backups are saved in Documents and Settings/[user name]/[catalog location]/[catalog name]/Backups/. 
  • Installed and custom presets and templates have filenames ending in .lrtemplate and are located in folders in the Documents and Settings/[user name]/Application Data/Adobe/Lightroom folder.
  • Registration information is located in the C:\ProgramData\Adobe\Lightroom\Lightroom 3.0 Registration.lrreg file. Lightroom 3 reads the Lightroom 2.0 or 1.0 registration registry entry when it validates upgrade serial numbers. If you upgrade and Lightroom 3 does not find a registry entry for either Lightroom 2.0 or 1.0, it prompts you for a serial number. 

File locations in Windows Vista 

  • The Photoshop Lightroom application is the Lightroom.exe file, located in the Program Files/Adobe/Adobe Photoshop Lightroom 3 folder. 
  • The preferences file is Lightroom 3 Preferences.agprefs, located in Users/[user name]/AppData/Roaming/Adobe/Lightroom/Preferences/.
  • The Users/[user name]/Pictures/Lightroom folder contains:
    • Lightroom 3 Catalog.lrcat, the Photoshop Lightroom database file
    • Lightroom 3 Catalog.lrcat.lock, which prevents you from overwriting data
    • The Lightroom 3 Catalog Previews.lrdata folder, which contains additional folders for preview files and data
  • Catalog backups are saved in Documents and Settings/[user name]/[catalog location]/[catalog name]/Backups/. 
  • Installed and custom presets and templates have filenames ending in .lrtemplate and are located in folders in the Users/[user name]/AppData/Roaming/Adobe/Lightroom folder. 
  • Registration data is located in the C:/ProgramData/Adobe/Lightroom/Lightroom 3.0 Registration.lrreg file. Lightroom 3 reads the Lightroom 2.0 or 1.0 registration registry entry when it validates upgrade serial numbers. If you upgrade and Lightroom 3 does not find a registry entry for either Lightroom 2.0 or 1.0, it prompts you for a serial number.

File locations in Windows 7

  • The Photoshop Lightroom application is the Lightroom.exe file, located in the Program Files/Adobe/Adobe Photoshop Lightroom 3 folder.
  • The preferences file is Lightroom 3 Preferences.agprefs, located in 

    Users/[user name]/AppData/Roaming/Adobe/Lightroom/Preferences/.
  • The Users/[user name]/My Pictures/Lightroom folder contains:
    • Lightroom 3 Catalog.lrcat, the Photoshop Lightroom database file
    • Lightroom 3 Catalog.lrcat.lock, which prevents you from overwriting data
    • The Lightroom 3 Catalog Previews.lrdata folder, which contains additional folders for preview files and data
  • Catalog backups are saved in Users/[user name]/[catalog location]/[catalog name]/Backups/.
  • Installed and custom presets and templates have filenames ending in .lrtemplate and are located in folders under the Users/[user name]/AppData/Roaming/Adobe/Lightroom folder.
  • Registration data is located in the C:/ProgramData/Adobe/Lightroom/Lightroom 3.0 Registration.lrreg file. Lightroom 3 reads the Lightroom 2.0 or 1.0 registration registry entry when it validates upgrade serial numbers. If you upgrade and Lightroom 3 does not find a registry entry for either Lightroom 2.0 or 1.0, it prompts you for a serial number. 

 

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