Crop photos to exact size

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This conversation has been merged. Please reference the main conversation: Lightroom: Crop to specific pixel dimensions

I would like to crop images to a specific size, for example exactly half the width/height of the original photo (in effect a form of digital zoom). Sliding the edges or corners isn't precise enough for this, especially if I'm doing the same for several photos and need continuity between them. Playing around with the aspect ratio settings is no help.

What I suggest is:
• One or two sliders and/or number entry boxes allowing you to set a percentage for width and height.
• Changes to sliders/number boxes should center on the middle of the current crop area.
• Changes by sliding crop edges/corners should also change the sliders/number boxes.
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Bjørnar Haveland

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Posted 3 months ago

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John R. Ellis, Champion

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As a workaround while waiting for Adobe to implement this, the Any Crop plugin lets you crop to an exact pixel size. You can also define a preset that crops to exactly 25% of the pixels of the current photo (50% of the width x 50% of the height), centered on the photo.
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Bjørnar Haveland

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Thank you for the suggestion. I'll be checking it out.

Meanwhile I have found a sort of workaround which helps in this specific case (i.e. 50%), but it's awkward, and easy to mess up. Also I've so far only got it to work with images of aspect ratio 3x2, and only in the Desktop edition, not Mobile (which is the one I use the most).

Our starting image is in landscape orientation (3x2), but you may rotate or recalculate for portrait orientation:

• pick a crop aspect ratio preset of 4x3
• press X to make it vertical, i.e. 3x4 (half the width of 3x2)
• release the padlock
• drag the top edge of the crop area down to lower than 1x1, but not as low as 3x2
• pick aspect ratio 3x2, and there you have 50% width by 50% height
• slide crop area to desired position
• done

Note: if you mess this up in Mobile afterwards and cannot undo it, then it's back to Desktop to fix.

Cumbersome, right? But at least now I'm “virtually” zoomed in at 270mm instead of 135mm (albeit at half the resolution), which is what I wanted. This is still more than good enough for screen use, and even small prints.
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Antoine Hlmn

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