GR_SLR
Level 1 (0 points)

Q: Why won't Aperture export jpegs at 300ppi

Since upgrading to El Capitan and having Photos thrust upon my library, I am no longer able to export files from Aperture (3.6) at 300 resolution. They default to 72 which is a pain If I have to supply clients with 300. Anyone know what's happened please?? Having to use Lightroom now instead and Photos just isn't up to the job for professional work.

Posted on Mar 21, 2016 11:02 AM

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GR_SLR

Q: Why won't Aperture export jpegs at 300ppi

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  • by Old Toad,

    Old Toad Old Toad Mar 21, 2016 11:33 AM in response to GR_SLR
    Level 10 (141,783 points)
    Photos for Mac
    Mar 21, 2016 11:33 AM in response to GR_SLR

    The Apple apps tend to reset the dpi settings of images to 72 because that's the resolution that they are displayed at.  Actually dpi is meaningless unless a print size is set.  The same image can be printed at different dpi's depending on the size of the print.  This site describes it in more detail: The Myth of DPI.

     

    Actually clients should specify minimum pixel dimensions rather than a dpi.  One could provide a 640 x 480 pixel image at 300 dpi and satisfy the 300 dpi specification and not have a very useful image file.

     

    You can open the exported image with the 3rd party editor of your choice that can reset the dpi to 300 without having to do any editing and save it.

     

     

    OTsig.png

  • by léonie,

    léonie léonie Mar 23, 2016 10:55 PM in response to GR_SLR
    Level 10 (109,072 points)
    iCloud
    Mar 23, 2016 10:55 PM in response to GR_SLR

    How are you exporting?  I can still select 300dpi in Aperture 3.6, if my OCR software requires it.

    In Aperture you can set the dpi in the export preset, when you export your photos.  Have you checked, if the export preset you are using has changed?

    To check the export preset, select "Edit" in the Export panel instead of "JPEG original size" or similar and check the dpi values you are seeing there.

    Correct them if necessary.

     

    Screen Shot 2016-03-23 at 23.47.37GMT.jpg

  • by GR_SLR,

    GR_SLR GR_SLR Mar 24, 2016 3:43 AM in response to GR_SLR
    Level 1 (0 points)
    Mar 24, 2016 3:43 AM in response to GR_SLR

    Thanks Leonie

     

    I have tried that and even recreated the preset for full size Jpegs and 50% again but to no avail? Still defaults to 72 yet is OK for Tiffs

     

    I don't know how or why it changed, I just noticed it one day when I was editing a file for a client!!

     

    I was wondering if their is an Import setting that is importing as 72 but that's not something I can find to check.