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Question

Crop to specific dimensions?

Forum|Forum|15 years ago
June 23, 2010
8 replies
28039 views

Is there a way to crop to a specific dimension? I have a 3888x2592 image and would like to crop it to 2400x1600. Problem I am having is I can get it to 2388x1589 or 2420x1619 or finally after many tries (over a minute of attempting) got it to 2399x1599. Is there any way to FORCE it to a specific dimension?

Also, on export I know you can resize an image, but are you able to apply a resize within lightroom itself? Can't think of a situation where I would want to do that, but just out of curiousity...

Thanks,

Clayton

This topic has been closed for replies.

S360

Participating Frequently

As a long, long time user of PS we've finally decided to add LR to our workflow, not without some hesitation from staff. Besides catalog sharing which I believe we've resolved there's this issue "cropping to specific pixel dimension" We have several odd sizes that cannot be changed one of which 1601x1149. Our goal is to automate exporting of images with watermarking and various image corrections.

Other than Rob Cole's possibility project saving plug-in (untested) we've found no way of automating the export of a specific pixel dimension without introducing PS back into the workflow before LR. I'm really amazed that this feature "common in PS" is not in LR.

Options we've tried are:

-Entering custom aspect ratio and entering pixels to convert, doesn't work.

-Export, Image Sizing, Entering Dimensions 1601x1149. The result is 1601x1144

Adobe can this not be a simple fix to include pixels and aspect ratios together?

areohbee

Legend

Consider going here to request or vote on the feature

http://feedback.photoshop.com/photoshop_family/products/photoshop_family_photoshop_lightroom

(this is the user-to-user forum)

S360

Participating Frequently

Thanks Rob I will. edit: After visiting there was nothing specific posted to voting so i posted a feature request.Feature Request: Crop to specific pixel dimensions

areohbee

Legend

malathan wrote:
Is there a way to crop to a specific dimension?

Answer (in summary) @Lr4.1:

Via direct support in Lightroom UI: No.

Via manual xmp editing: Yes, if you are willing to figure out the correct values to use, and edit xmp using text editor, read metadata, and then save cropped photos for copy/paste in future.

Via XmpCrop plugin: Yes, you can crop to a specific dimension, quite simply.

Rob

G

GrizzlyAK

Known Participant

Contrary to what everyone is telling you here, yes, you can crop to exact dimensions, kinda. I had the same problem. I first crop to a specific aspect defined by the dimension I want, for example, 2400x1600. I do this by chosing "Enter Custom" in the crop box at the top right. You enter it as a 2.400 and 1.600, since 2.4x1.6 is the same as 2400x1600, and LR does'nt let you enter big numbers. Then, one you have it cropped to the right aspect, you can export the file to that exact dimension from LR using the Export command. I do this all the time to create exact dimension jpegs for my web site. Works great.

areohbee

Legend

Nobody is disputing whether you can export to exact dimensions or not, but if you read a little closer, you'll see the distinction some folks are making, and why they want to crop to exact dimensions, instead of exporting to exact dimensions.

DdeGannes

Community Expert

OK so its not possible in LR, is it possible in a pixel editing program like Photoshop, Paint Shop Pro etc. without resampling?

Regards, Denis: iMac 27” mid-2015, macOS 11.7.10 Big Sur; 2TB SSD, 24 GB Ram, GPU 2 GB; LrC 12.5,; Lr 6.5, PS 24.7,; ACR 15.5,; (also Laptop Win 11, ver 24H2, LrC 15.0.1, PS 27.0; ) Camera Oly OM-D E-M1.

areohbee

Legend

XmpCrop supports cropping to exact pixel dimensions:

Click here...

K

keylightdigital

Participating Frequently

Rob Cole wrote:
XmpCrop supports cropping to exact pixel dimensions:
Click here...

Cool. I downloaded and installed, but coming up with an error (which I've submitted via your site).

areohbee

Legend

Thx - I replied...

R

areohbee

Legend

Dunno if it's worth the trouble to you, but you can set the crop in xmp using exif-tool (or a grep util, or text editor), then re-read metadata in Lightroom.

There may be a plugin that automates it.

PS - To "resize" in Lightroom, export back to catalog. I've done this before for special-purpose images.

Cheers,

Rob

MikeKPhoto

Known Participant

This is an interesting topic as I become more familar with LR I have been considering using the print module rather than printing from PS. This in part by comments from some of the forum guru's on how much better the print workflow is compared to PS.

About 5 times I year I go into mass printing mode for my shows. I use pre-cut archival matts and buy in bulk to keep the costs down. So in PS I have custom crops that give an image about 0.15" greater than the window opening. This helps me keep the ink costs down as well (all about the margins, $ ones that is).

I have been experimenting with LR and output cropping to keep the workflow within Lightoom, but not being successful. For instance in PS I can crop an image to 4.15"x6.15" to fit an 8x10 matt (I let PS handle the resampling) and print a bunch of copies. Is this possible within LR, because I either I am really missing someting or doing somthing really wrong.

Any ideas more than appreciated

Cheers

G

GrizzlyAK

Known Participant

I've complained about this before too, and requested it be added as a feature. You can, however, enter exact aspect ratios, even if your pixel dimensions are greater than 999.999 (the max for LR). You can just enter it as a rational number, so 1900 x 1200 would be 1.900 x 1.200. These numbers provide the same ratio and will work in LR. Not having a way to specify exact pixel dimensions is just LAME, LAME, LAME and would be trivial to do in LR. WE WANT IT ADOBE!

exploded_view-6yAW9i

New Participant

I don't know if you've been doing this, but you can crop to a specific ratio (through Enter Custom...), which in your case would be the very common 3:2 (then set the specific pixel dimensions on output, as, I think, you have been doing).

I don't think you can crop to specific pixel dimensions within Lightroom (save for doing this on export). The current setup is probably a better way to do things anyway, since you can use any region of your original photo at the chosen ratio, rather than having to use a 100% crop.

I've used this method for blog headers, etc., and I've found it very handy to just be able to set the ratio in Lightroom, select the section I want as a header, then export at exactly the dimensions I need.

dorin_nicolaescu

Inspiring

No, you cannot.

Why do you need to crop to exact pixel dimension? Is it a photograph or some technical drawing?

Andrzej007

Participating Frequently

I like macrophotography where magnification and details matters.

I have a photo 4000 x 3000 and I want to crop SPECIFIC region of the photo having EXACT size of my desktop i.e. 1440 x 900.

This would give me maximum magification without losing details.

It's not possible with LR

JP Hess

Inspiring

In Lightroom, photo dimensions is part of the export function, not the editing. You cannot specify a size in the develop module. You are going to have to modify your workflow. Crop to the 2:3 aspect ratio, and then export with the long side set to 2400 pixels. That's the way it works. Otherwise, you would have to have a separate image for every purpose. The whole idea (for me, at least) is to have one master image that I can use for any purpose. Then I use the export function to customize the copy for whatever purpose I need.

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