Resize Photo in Lightroom Mobile

How to Resize Images in Lightroom Mobile

Resizing images on the go with Lightroom Mobile on iPad, iPhone, and android is a quick and efficient way to adjust dimensions (cropping) for social media, a blog, or websites, or to resize the overall dimensions of the image; the mobile app simplifies the process, giving you flexibility wherever you are and making quick edits faster than working on a computer.

Getting Started with Adobe Lightroom Mobile

Lightroom Mobile is perfect for editing on the go for professional photographers. I travel a lot and only take my iPad, where I do all my importing and initial editing in Lightroom Mobile, though the software also works across mobile and desktop on Mac and Windows. Lightroom Mobile allows me to resize and export my images for most of my needs, whether I’m prepping photographs to add to my website, social media or print. Resizing an image here is easy and can be done with just a few steps, and Lightroom’s non destructive editing preserves the original file and original image while creating a smaller version for export.

But what’s the difference with Adobe Lightroom CC on your desktop?

The desktop version offers several options and more than one method for resizing image exports, while Lightroom Mobile is more about ease and speed. On a desktop computer, the export window gives you more control than Lightroom Mobile, and users typically open it from the top toolbar or the export dialogue box. You can adjust one or multiple images at once.

Resizing Images with the Crop Tool in Lightroom Mobile

If you need to adjust the dimensions of an image without exporting, using the Crop Tool in Lightroom Mobile is a quick and effective way to resize. Here’s a step-by-step guide on how to resize your images using the crop tool:

Step 1: Open the Lightroom Mobile App

Launch the Lightroom Mobile app and select the image you want to resize from your library.

Step 2: Tap on the Crop Tool

Once your image is open, tap the Crop Tool icon, located in the toolbar at the bottom of the screen. The crop tool will allow you to adjust the size and shape of your image.

Step 3: Choose an Aspect Ratio

At the bottom of the screen, you’ll see different Aspect Ratio options (like 1:1, 4:5, or 16:9). You can select a preset ratio depending on where the image will be used (social media, web, etc.), or choose Custom to manually crop it to your preferred dimensions. Keep in mind that choosing a ratio can leave you with a cropped image rather than simply changing dimensions; for example, a 1:1 crop works well for social posts.

Step 4: Adjust the Crop

After selecting an aspect ratio, drag the corners or edges of the crop box to change the width and composition as the image is cropped. You can also rotate or straighten the image by using the rotation dial just above the crop tool.

Step 5: Confirm the Crop

Once you’re satisfied with the size and composition, tap the checkmark (✓) in the bottom right corner to apply the crop.

Step 6: Export or Continue Editing

After resizing, you can either continue editing the image or export it by tapping the Export button. If you’re happy with the resized image, save or share it as needed.

Resize and Export in Lightroom Mobile

Resizing the image in Lightroom Mobile is a quick way to adjust the size of your photos on the go. To resize an image in Lightroom Mobile:

1. Open the Lightroom Mobile app and select the image you want to resize.
2. Tap the “Edit” button and then tap the “Export” button.
3. In the Export settings, tap the “Image Size” option in the image sizing area.
4. Choose from the presets or enter a custom size in pixels; Lightroom also lets you resize by the long edge or short edge depending on the result you need.
5. Tap the “Export” button to save, noting that different settings create different files and affect file size.

Resizing Multiple Images at Once

Resizing multiple images at once is a time saving feature in Lightroom Mobile where you can apply the same settings to multiple images. Select multiple images and follow the same process as with a single image to resize multiple photos at once.

Export Image Resolution and Quality in Lightroom Mobile

Optimizing image resolution and quality is key to getting the best results when resizing images, since exporting is really about balancing dimensions, pixel count, and image resolution for the intended use. Lightroom Mobile has options with a few settings.

JPG Image Quality: When exporting a JPG image in Lightroom Mobile, like in Lightroom CC, you can adjust the image quality on a slider from 10% to 100%. Lower percentages reduce file size but can also reduce image clarity due to compression artifacts. For example, lowering megapixels or pixel dimensions can make a photograph easier to deliver online while still keeping enough quality. I recommend choosing a quality setting between 80% and 90%, it’s a balance between file size and high visual quality, perfect for web use and prints. Larger files can slow uploads to websites, while smaller export settings are often better for a blog and online sharing.

TIF Image Bit Depth: Like Adobe Lightroom CC, you can choose between 8-bit and 16-bit color depth. An 8-bit image has 256 levels per channel, good for web use or small prints. A 16-bit image has 65,536 levels per channel, good for high resolution images meant for large prints or further editing.

Output Sharpening

When exporting images, Lightroom Mobile has an output sharpening option. You can fine tune the sharpening of your image depending on whether it’s for screen or print on matte or glossy paper:

• Screen: For digital displays (monitors, phones).

• Matte Paper: For softening textures on matte prints.

• Glossy Paper: For subtle sharpening on high contrast glossy prints.

Color Space

Choose the right color space to ensure your images look good on screen or in print:

• sRGB: Most used for web and digital viewing.

• Display P3: Optimized for Apple devices, more color.

• Adobe RGB: For print, wider color gamut.

• ProPhoto RGB: For editing, bi

sRGB is the safest for web use, Adobe RGB or Display P3 for high end displays or printing. ProPhoto RGB for editing, especially when working on multiple platforms.

Conclusion

Resizing images in Lightroom Mobile is a simple, time-saving way to edit on the go, and it gives you several resizing options when exporting for screen or print. It is not as powerful as Adobe Photoshop or Lightroom CC, whose desktop software offers a fuller export dialogue and dialog box than the mobile app, but when you need to adjust dimensions for quick web upload, social media sharing or printing, the app has got you covered. With just a few taps you can have your images ready for any platform, all from your mobile device. It’s the perfect way to be creative and productive no matter where you are, while creating a smaller version for sharing and keeping the original image untouched.