External Editors For Photos adds an extension to the OS X Photos application that allows you to edit your photos with any image editor on your Mac. To see how it works watch the screencast on my website.

Features:

• Edited images are saved back to Photos immediately and your original photos are updated in place.
  
• All metadata will be preserved.
  
• Open your imported RAW files with your favorite RAW-Converter and replace it with an.
  
• No data lost: You can always revert back to your original files.
  
• Works even in your book-projects.
  
• Edited Photos will sync across all your devices.
  

Usage:

• To use the extension find a picture in Photos and double-click
  
• Click the Edit button in the upper right window corner
  
• Select the Extensions from the icon bar on the right.
  

Tipp:

• Pressing Enter in the photo overview is a shortcut to switch directly into Photos edit mode.
  
• Also, you can paste or drag any image into the picture frame within the extension.
  

Version 1.1

• Manage your own list of favorite image editors and add any editor you like
  
• Convert images to TIFF or JPEG before opening, so you can edit your RAW images with more editors
  
• Copy images to a folder on your disk and use it as the starting point for your custom workflow
  
• Replace images with files from your disk with a single click