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L
LarsSmook
Participant
May 3, 2018
Question

Export image size at least 20x30cm 300dpi, but bigger when possible

  • May 3, 2018
  • 2 replies
  • 4501 views

Hey people!

I've got a question, hope somebody knows@ the answer. I work for two big press agencies and they have a different view on what size the uploaded images need to be. One agency want the images as big as possible but not smaller than 20x30cm 300dpi. This means that when I upload a crop it needs to resize to 20x30, but when it's bigger than 20x30 it doesn't downsize the image.

The other agency wants all the images on a resolution of 20x30 300dpi.

I use two export settings:

- the first one resize all the images to 20x30cm

- and the second one doesn't resize at all

With the last one I have the issue. It works fine when I don't make any crops. But when I crop the image for example to 19x28,5cm is doesn't make it larger. Is there a option to have export at least 20x30cm but bigger when possible!?

Cheers,

Lars

This topic has been closed for replies.

2 replies

R
Community Expert
richardplondonCommunity Expert
Community Expert
May 4, 2018

As I mentioned in my earlier reply, LR's got a "don't enlarge" resizing option, but no "don't reduce" option.

You can call in a post-process action as part of your export, carried out by another program / utility which HAS such an option.

One example is ImageMagick which can do all kinds of things, as defined by text commands including a "<" symbol meaning "don't shrink".

http://www.imagemagick.org/Usage/resize/

The way one would achieve that from LR, is via the front-end of a plugin "LR/Mogrify where there is a box to type ImageMagick commands, to be applied onto the exported images after they have left LR. So you would un-check resizing so far as LR is concerned, still setting 300ppi though. Then tell Mogrify to conditionally resize, but only if smaller than your limit.

https://www.photographers-toolbox.com/products/lrmogrify2.php?sec=quickguide

JP Hess
JP Hess
Inspiring
May 3, 2018

An image that is exported at 20 x 30 cm is that size regardless of what the PPI or DPI setting is. It is always 20 x 30 cm. The PPI setting isn't going to change anything. It's only a reference number indicating intent. You can export an image as large as you prefer, but that doesn't mean the quality will be desirable. If you have the latest Photoshop, perhaps you should look at the new resizing options available there.

Best Way To Enlarge Images In Photoshop CC 2018

L
LarsSmookAuthor
Participant
May 3, 2018

I do know, how dimensions work. I guess I didn't clearly formulate my question.

Example: I made a semi close portrait with my Nikon D5 camera than is the RAW image 47,14cm x 31,43cm 300 dpi (straight out of my camera). Now I want to crop this semi close portrait to a close portrait so I'll crop it to 28,5cm x 19 cm 300 dpi. Now I'll export it to a *.jpg, and I make it 30x20 cm 300 dpi on export. But when using this setting it also downsize images which are bigger than 30 x 20cm. You when I directly export the semi close portrait it makes the image smaller. Want I'm looking for is a option than when the original file is bigger than 30x20cm it doesn't resize the image, but when the 'orginal image' (crop) is smaller than 30x20cm it needs to resize the image during export.

Hope this explanation makes my question more clear.

It should be at least 30,000 cm but bigger when possible. There is an option 'Don't Enlarge', but i'm looking for a option 'Don't Shrink'.

cheers,

Lars

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