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  1. #1

    Member Since
    Nov 10, 2010
    Software for resize DPI in bulk?

    I'm looking to decrease the DPI for around 400-600 images. What software would you recommend I use to do this in bulk?

    iPhoto doesn't seem to be able to and that's the only image editing software I've got.

    I know DPI changed be changed in Preview, but seemingly one image at a time.

    All help appreciated!


  2. #2

    Member Since
    Apr 02, 2009
    Southern Illinois, Born in England.
    HOME: imac 24", 2.66GHZ INTEL CORE 2 DUO, 4GB ram, 640GB HD.WORK:G5 Dual 2.7 GHz, 8GB ram

  3. #3

    MYmacROX's Avatar
    Member Since
    Mar 17, 2009
    2008 15" MBP Yosemite, 2012 21.5" iMac Yosemite
    That article is 3 yrs old and references Tiger. But Automator is still a good solution to batch changes. I'm sure it's not the only one, but it will work.
    I suggest using Automator to create a folder that will open Preview, resize, and save files to a specific folder when you drop files into it. You could take 100 image files, drop them into that folder and it'll automatically do the rest. You just have to set it up properly. It's pretty intuitive and if you need any help, use the Help in Automator or Apple's support page.
    64GB iPhone 6, 64GB iPad Air 2.

    Reminder: Please include your Mac's specs. This will make it much easier for the other members to assist you.

  4. #4

    chas_m's Avatar
    Member Since
    Jan 22, 2010
    Victoria, BC
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    GraphicConverter was built to do exactly this sort of stuff.

  5. #5

    Member Since
    Nov 10, 2010
    Thanks for all of your help! Automator worked fine.

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