How to Resize Images in Lightroom 2

One of the hardest things for a new Lightroom user to work out how to perform is a simple image resizing. Look as hard as you like and there simply isn’t a resize menu command.
There is, of course, a way to resize images and it is done as you Export them from Lightroom which makes sense when you know how Lightroom works but if you’re a new user it’s just plain confusing.
So, here’s how to batch resize in Lightroom:
Step 1
Select the Library module and select the images to export. Choose File > Export.
Step 2
The Export dialog gives you a series of choices for the exported images. Start by selecting where the exported images should be stored. Choose either a specific folder or the same folder that the originals are stored in.
To place the images in a subfolder of your chosen folder, select Put in Subfolder and type the name of a new subfolder to create. If you want the exported images to be available in Lightroom, select the Add to This Catalog checkbox. From the Existing Files dropdown list, choose what to do if files of the same name appear already in the selected folder.
Step 3
From the File Naming options select what you want your files to be named.
For example, selecting Filename will give the files the same name as the original images. Custom name – Sequence lets you give the files a custom name and Lightroom will add a sequential number to each file. Type the Custom Name in the Custom Text box.
You can also select Edit from the dropdown list and create your own file naming template.
Step 4
In the File Settings area, select the export format such as JPEG for the web and the Quality – the higher the quality, the larger the file size.
In the Color Space area choose sRGB for the web.
Step 5
In the Image Sizing area set the file size and resolution. So you can, for example set the Resolution to 72 pixels per inch for the Web or 300 ppi for printing.
To size the images, enable the Resize to Fit checkbox. By selecting Dimensions you can set the final dimensions for each image such as 800 x 1200 and the images will be sized as close to this as they can be given their current aspect ratio. They won’t be larger than this and one measurement at least will be 800 or 1200. Lightroom does this regardless of whether the images are in Portrait or Landscape orientation so portrait and landscape images will end up the same sizes.
If you select Width & Height you can set the longest dimensions of each image in each direction. All images will be sized so their Width is no larger than the value you set and their Height is no larger than the value you set – the same width and height values are applied to portrait and landscape images so a Width of 400 and Height of 600 will give a larger portrait image than it will a landscape one because the landscape image can’t be wider than 400, forcing its height to much less than this.
The Long Edge and Short Edge options let you set the maximum length of the long or short edge of a photo – so Portrait and Landscape images are treated alike here.
If you enable the Don’t Enlarge checkbox you could have images much smaller than your selected dimensions if the originals are already under the selected size.
Step 6
You can apply sharpening by selecting the Sharpen For checkbox from the Output Sharpening options and select to sharpen for Screen, for example, and set a Low, Standard or High Value of sharpening.
In the Metadata area, select to add metadata if desired and from the Post-Processing options select what to do with the images afterwards, for example you could open the images direct in Photoshop or in an alternate editor or another application or show them in Windows Explorer.
When you’re done with the selections, click Export and the selected images will be exported.
Step 7
If you’ll use these settings again, save them to use next time by clicking the Add button at the foot of the Preset list, type a name for the preset, select the folder to add the preset to or just leave it set to User Presets and click Create.

In future, you can return to the Export dialog and select these options by clicking the Preset name. You can still make changes to the settings, if desired, and export a new set of images.










15 Responses to “How to Resize Images in Lightroom 2” - Add Yours
June 30th, 2009 at 2:02 am
Thanks for the tutorial, although I really think this is a guide that should be titled “How to export images in LR2″ instead.
June 30th, 2009 at 5:13 am
Thanks, U allways have great tutorials!, thanks.
Palaniscl.-
June 30th, 2009 at 9:45 am
Is there a conversion from pixals to size of paper we want the image to print on? For example, I shoot RAW and high quality, so my pix counts are 4000 x 3000 or whatever… (Nikon D90; 12.1 mp)… and I want to have an image print on my 13 x 19 paper in my new Epson R-1900 printer… do I just have to play with the pixal count in order to come up with that image being able to print border to border on that size paper? Sorry…but I am new to this stuff…as a new found hobby in my later years in life. Thanks for the help.
June 30th, 2009 at 11:31 am
Excellent, so far I was using photoshop to resize the photos i wanted to upload to the web. I was using the photoshop predefined actions to do this. This post have given me new life. I will use lightroom from now on. Thanks.
June 30th, 2009 at 10:58 pm
Thanks again for yet another useful tutorial. You can produce all the tutorials you like on lightroom :-))
July 1st, 2009 at 1:03 am
Thanks Animator for your kind words. I certainly plan to write lots more Lightroom posts. I really think it is such a powerful tool for Photographers and such a huge time saver that it deserves some comprehensive coverage.
To answer Dave P. A good (rough) rule of thumb is to multiply the dimensions of your paper (in inches) by the dpi you want to print at to get the ideal printing dimensions. So, to simplify, if you will print at 250 dpi and you want to print on 13 x 19 in paper you (ideally) need to have a (13 x 250) x (19 x 250) pixel image which is around:3000 x 4750. This is a different ratio than your images are coming out of the camera at. Your best bet is to crop to 13 x 19 aspect ratio in your software, eg Lightroom then export the image at the cropped size – if you crop yourself you get to choose what you lose off the shorter dimension of the page – you will lose something in printing if you want to print full bleed (borderless) – so either you make the call or your software/printer makes it for you. Let us know if you have more questions, I track comments so I can help if you tell me what you need.
July 1st, 2009 at 2:26 pm
@Alfie and others who are using Lightroom and posting pictures on web sites like flickr, picasa, facebook check plugins at http://regex.info/blog/lightroom-goodies, as you’ll be able to publish your pictures on web directly from LR.
July 2nd, 2009 at 6:18 am
Is there anyway to export a batch of images and limit them to a max mb file size? For example I work for xyz company that requires me to deliver the event images at no larger then 5MB. So when I import the images I look thru them and perform various adjustments to particular images and determine which images I want to send to corporate. However when I export now the images all come out at different sizes depending on what adjustments I have performed. So I get images that are 4mb in size and some that are 8mbs and anywhere in between. So Im stuck going through and re-exporting sometimes 20-100 images and adjusting the quality of the jpeg/srgb to get those few files under 5mb…major pain in the ass when your handling 500+ images to have to go thru and find the over sized files..Id appreciate any help you could offer on this topic.
July 3rd, 2009 at 1:48 am
Great Article, i never new it lightroom capable to resize an image, i’m always use photoshop to resize an image.
Thank you for your post
July 3rd, 2009 at 5:33 pm
Easier to use Photoshop.
July 4th, 2009 at 1:16 am
I use the J Friedl plugin with Lightroom for uploading to Flickr. Having read this article I might reduce the size of the images I download as the masters on the Flickr site are pretty big, (Canon 5D mark II) and Flickr reduces the size of the shot for general browsing but maintains the size of the original for downloading. The largest image I downloaded was a JPEG of a panorama I took in Switzwerland. (21879 x 3637 pixels) http://www.flickr.com/photos/50638285@N00/3488385093/sizes/l/in/set-72157615370447380/
As you can see you could theoretically download this and spread it right across a wall! It might have taken less time if I had reduced the size of the file I sent to Flickr.
July 12th, 2009 at 11:08 am
Lightroom has worse resizing than Photoshop.. Images kinda lack sharpness after reducing them with LR. Not sure about increasing size.
September 16th, 2009 at 7:45 am
I have a question. Is there a good rule of thumb or formula to put into the Image sizing box in Lightroom. Is there one size (height and width for pixels) that would work in general for most sizes? By accident I deleted the sizes I had in there before and don’t know what to put in.
Secondly, if I give a file to someone to print 4×6’s and 5×7’s but nothing larger what would I make for the sizing and would I reset the resolution so that the it would make a clear smaller print but not an acceptable large print?
Thanks!
October 30th, 2009 at 5:32 am
Thanks a million! That helped me tons!
January 12th, 2010 at 10:26 am
I have several thousand images. They vary in size and some are tall and others wide.
I need to have all images square. Not wanting to lose resolution or have smaller images expanded and look bad.
How can I make all of my images square? Which if any of your programs would do that in a batch process?
examples:
An image 200 x 400 end up 400 x 400
an image 800 x 600 end up 800 x 800
and so on. Or if anything make them all 600 x 600 wand resize down large images or give white space around smaller images.
thanks,
Dave
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