Photo ToolboxDownload on the App Store

PHOTO NOTES

Crop or resize? Choose the right way to change a photo

Understand framing, aspect ratios and exact pixel dimensions.

Cropping changes what is in the picture

A crop removes pixels from the edges of a photo. Use it to centre a subject, remove a distraction or change a landscape frame into a square. Check that important details remain inside the selected area. The original stays on your device.

Resizing changes how many pixels you have

Resizing reduces or increases width and height. It preserves the whole selected crop when the aspect ratio stays locked. Smaller dimensions usually help file size, though actual bytes also depend on format and quality. Enlarging does not restore texture or make a low-resolution face sharp.

Pick a ratio, then position it

In Crop & Resize, choose Original, Square, 4:3 or 16:9. The tool centres a rectangle with that ratio. Change X and Y to move it, or drag a new custom rectangle on the preview. Width and height are measured in upright source pixels, making the selection reproducible with a keyboard.

Set the output size deliberately

Keep the ratio lock enabled and enter the output width; the height follows. You can unlock the ratio for exact dimensions, but the result can stretch. Rotation is applied after resizing, so a 90° turn exchanges the final width and height.

Review the export

PNG and WebP preserve transparency, while JPG uses a white background. Check the actual output dimensions shown after processing and view the downloaded photo. If a destination requests both a ratio and a maximum file size, finish with Compress Photo.

Keep exploring

How to reduce a photo’s file size for an upload

JPG, PNG or WebP: which photo format should you use?