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margf90845199
margf90845199
Inspiring
January 4, 2019
Answered

Export with specific pixels and dpi/ppi in Illustrator

  • January 4, 2019
  • 4 replies
  • 13272 views

I have an image that is 5472 x 3648 pixels, and 300 dpi. I am trying to crop it to 250 x 250 pixels, with 150 dpi in JPG format.

When I created the document in Illustrator (File > New), I made the artboard 250 x 250, and set the Raster Effects to "Medium (150 ppi)."

When I "Save for Web (Legacy)," the image saves with the correct pixels (250 x 250), but the dpi is 96.

When I "Export as... JPEG (*JPG)," I set Quality: Medium, Compression Method: Baseline Optimized, Resolution: Medium (150 ppi), and Anti-aliasing: Art Optimized. Then, the exported file is the right dpi (150), but the pixels are 522 x 522.

How can I export so that I get the correct pixels AND correct dpi?

    This topic has been closed for replies.
    Correct answer margf90845199

    Problem solved! For anyone else having the same issue -- use Photoshop instead of Illustrator. First select the Crop tool. Then in the top left corner, click the drop-down menu that says "Ratio" and select "W x H x Resolution." Then enter the desired pixel dimensions and ppi. So for my example, I entered "250 px x 250 px x 150 px/in."

    Thanks everyone for the help!

    4 replies

    margf90845199
    margf90845199AuthorCorrect answer
    Inspiring
    January 7, 2019

    Problem solved! For anyone else having the same issue -- use Photoshop instead of Illustrator. First select the Crop tool. Then in the top left corner, click the drop-down menu that says "Ratio" and select "W x H x Resolution." Then enter the desired pixel dimensions and ppi. So for my example, I entered "250 px x 250 px x 150 px/in."

    Thanks everyone for the help!

      T
      Test Screen Name
      Legend
      January 4, 2019

      One key thing to know: Illustrator does not set a size in pixels. Only inches/mm. I know it seems to but it just does a simple thing of assuming you have a 72 ppi resolution and setting the size in inches/mm. You cannot change this, but if you know it does it you can work with it.

      So, if you wanted to make a 250 x 250 pixel result at 150 ppi you have to work out what that actually means in inches. Easy enough, 250/150 is 1.667, near enough. So you make your original 1.667 x 1.667 inches. When you export at 150 ppi it will be 250 pixels square. Done! Except... I agree 100%, don't use Illustrator to crop images !!

      Another piece of info: Save for web saves WITH NO RESOLUTION. When you believe it to be 96 ppi, it's just the default for that app. A different app will show a different resolution. This is because ppi is of absolutely no importance (repeat, none) for web graphics.

        John Mensinger
        Community Expert
        John MensingerCommunity Expert
        Community Expert
        January 4, 2019

        Your input = raster image

        Your desired output = raster image

        Illustrator is a vector graphics application and the wrong tool for this task.

        Do you have access to Photoshop?

        Monika Gause
        Community Expert
        Monika GauseCommunity Expert
        Community Expert
        January 4, 2019

        margf90845199  schrieb

        How can I export so that I get the correct pixels AND correct dpi?

        You can't.

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