iPhoto file size vs Original Photos

Discussion in 'Mac Apps and Mac App Store' started by Yerman, Feb 22, 2016.

  1. Yerman macrumors member

    Oct 16, 2008
    I'm switching from iPhoto to something else. Not sure what yet...just not iPhoto.

    So I exported all my photo's from iPhoto and the folder size is 46.36GB vs my iPhoto Library folder size of 80.96.

    Is that normal for the iPhoto library to be almost twice as big?

    I want to make sure everything is good before I delete the iPhoto folder for good.
  2. ApfelKuchen macrumors 68030

    Aug 28, 2012
    Between the coasts
    Be sure you exported those image files at full resolution. Also, did you Export as Original, export the edited versions, or both?

    But yes, an iPhoto library contains a lot more than the original images, so it can be significantly larger than a set of folders containing only the master image files. Every image has a Preview version as well as the Master. The Previews may be smaller than the Masters (especially if the masters are RAW), but for lower-resolution cameras that output JPGs, the Previews may be almost as large as the Masters. There are also (much smaller) Thumbnail versions of the images, plus all the data (image metadata, data describing the edits made to the images, data describing the organization of all the Events and Albums you've created....).
  3. maflynn Moderator


    Staff Member

    May 3, 2009
    The iPhoto library holds the edits, previews, extra metadata, and possible some deleted images so yeah its possible. As noted above, be sure to export the Masters.
  4. Yerman thread starter macrumors member

    Oct 16, 2008
    Ya...I made sure to select "Original" when exporting. Thanks guys.

Share This Page