4 Replies Latest reply: Aug 5, 2013 1:15 AM by léonie
Dave Angel Level 1 (0 points)

Attempring to export lots of files for printing with a preset at 300 dpi, once exported the end file is always less than 300 dpi, however, if I set the dpi to 400 the end result is higher than 300 dpi, but at a guess to the end amount of dpi!, could be 370 or there abouts.


So, how do i get to send to printers files at 300 dpi, or very near?


Thanks in advance



Imac 27inch, Mac OS X (10.6.4)
  • Frank Caggiano Level 7 (25,715 points)

    How are you exporting the images and how are you looking at the exported images to see what DPI they are at?


    For what it is worth when I export from Aperture the DPI I select in the export dialog is the DPI of the exported image.

  • léonie Level 10 (85,020 points)


    what settings are you using, when you are exporting your image version?

    • Are you using the dpi settings in the export presets together with a change in pixel size or image dimensions in inches?
    • Or are you exporting at the original pixel size, but are assigning a different dpi value?


    And how are you checking the dpi of the final image?


    When I am setting the dpi value in the export preset "jpeg original size" to 300dpi, I will see the exact 300dpi as a tag, when I inspect the exported file with Preview, and the same holds for any changes to the size settings of the image; the dpi-metadata tag will always show 300 dpi, just like Frank Caggiano is saying.

    Or are you not looking at the dpi-tag, but computing the dpi from the actual image dimensions in inches and the pixelsize? That result may depend on your print settings as well.


    In Preview I am seeing this:

    Screen Shot 2013-07-14 at 09.30.35MESZ.PNG


    -- Léonie

  • Dave Angel Level 1 (0 points)

    Hi Leonie


    Think I'v got this sorted now after checking the dpi in preview, the incorrect reading came from a third party printer reading of the dpi.



  • léonie Level 10 (85,020 points)

    Good to know, Dave. Thanks for letting us know the solution.