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tarrickb16394748
Participant
March 20, 2018
Answered

I want to change my image size to 2400 x 2400 - 300 DPI.

  • March 20, 2018
  • 3 replies
  • 8975 views

Hi there,

I have had a request to change the photos I've edited to 2400 x 2400 - 300 DPI.

But when I change the photo in export it keeps exporting it as 2400 x 1601.

DPI is good but won't keep the dimensions.

Can someone help?

Many thanks,

T

      This topic has been closed for replies.
      Correct answer Michael J. Hoffman

      Sorry, Mike, that's not it. He exported the uncropped image. He said: "So I have gone back to my original photo. Not changing the aspect ratio at all in development mode."

      As I stated, this will not work. He must export the 1:1 cropped image to get 2400x2400..


      dj_paige  wrote

      Sorry, Mike, that's not it. He exported the uncropped image. He said: "So I have gone back to my original photo. Not changing the aspect ratio at all in development mode."

      As I stated, this will not work. He must export the 1:1 cropped image to get 2400x2400..

      And I also reiterated that point when I said, "However, you'll have to go back now and crop your image again to 1:1 to make it square if you want the output to be square. A rectangular image won't export as square."

      But the underlying problem here is the mixed dimensions, 24x24cm at 300dpi is never going to yield a 2400 pixel image.

      Also, as pointed out several times, the image itself is really low resolution in the first place. 1000 x 667 is an image that has already been severely downsized. Starting with the original full sized image would give far superior results.

      Mike

      3 replies

      T
      tarrickb16394748Author
      Participant
      March 21, 2018

      Hi Mike,

      Thank you for your help.

      But I'm still stuck.

      I tried changing the aspect ratio to 1x1 in the original section you mentioned in the development module but I still can't export without the software automatically changing the dimensions to something else.

      Even when I change the ration the dimensions still remain the same on the meta data panel.

      Before edit:

      After edit:

      Dimensions remain the same.

      Michael J. Hoffman
      Community Expert
      Michael J. HoffmanCommunity Expert
      Community Expert
      March 21, 2018

      Look at the dimensions of your image. The original was 1000 x 667. The cropped version is 667 x 667. This a really small image, and is much smaller than your target size. LR will not enlarge when exporting - it will only reduce the size. If you specify a pixel dimension when exporting in LR, you are telling LR to shrink the image if it is too big.

      In order to enlarge your image, you’ll need to edit your photo in a program like Photoshop or Photoshop Elements, and use the Image > Image Size to resample your image to 2400px on a side.

      I ‘I think your example image must not be the one you were using in your original post, because that one had 2400px on at least one side.

      T
      tarrickb16394748Author
      Participant
      March 22, 2018

      dj_paige  wrote

      Sorry, Mike, that's not it. He exported the uncropped image. He said: "So I have gone back to my original photo. Not changing the aspect ratio at all in development mode."

      As I stated, this will not work. He must export the 1:1 cropped image to get 2400x2400..

      And I also reiterated that point when I said, "However, you'll have to go back now and crop your image again to 1:1 to make it square if you want the output to be square. A rectangular image won't export as square."

      But the underlying problem here is the mixed dimensions, 24x24cm at 300dpi is never going to yield a 2400 pixel image.

      Also, as pointed out several times, the image itself is really low resolution in the first place. 1000 x 667 is an image that has already been severely downsized. Starting with the original full sized image would give far superior results.

      Mike


      YES!

      Thank you Mike, got there finally.

      You're awesome.

      Hugely appreciated.

      T

        Abambo
        Community Expert
        AbamboCommunity Expert
        Community Expert
        March 21, 2018

        Hi Tarrick,

        Mike has answered the question to your problem, I just wanted to add that the DPI parameter adds nothing to the quality or size in pixels to the picture. It's just a hint to other programs (like DTP programs like Indesign) on how to interpret your 2400 pixels and to translate that into a size in inch (or mm).

        300 DPI is the pixel density that a picture should have for professional print to be viewed at a standard reading distance.

        Have a nice day,

        Abambo.

        ABAMBO | Hard- and Software Engineer | Photographer
          Michael J. Hoffman
          Community Expert
          Michael J. HoffmanCommunity Expert
          Community Expert
          March 20, 2018

          Hi Tarrick,

          The dimension 2400x2400 is a square, and your photo is apparently a rectangle. First, you need to use the crop tool to crop the image to a square size. You can do this within the crop tool (in the Develop Module) by clicking the word "Original" next to the lock and choosing “1:1” as your aspect ratio.

          Then check your image size (in the Metadata panel of the Library Module) to make sure it is at least 2400 pixels or larger, and try exporting again.

          Let me know if you need additional help.

          Mike

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