Resize an image without stretching it
Understand pixels, aspect ratio, and the difference between resizing and cropping.
Put it into practice
Try the tool Image Resizer · Free, with local processing.
Start with the shape, not just the numbers
A 2400 × 1600 photograph has a 3:2 aspect ratio. If you set its width to 1200 pixels and preserve that ratio, its height becomes 800 pixels. Setting both dimensions to 1200 would change the shape of the subjects.
Put this guide into practice with the Image Resizer. Review the tool’s inputs, example and limitations alongside your result.
Resize when the shape should stay the same
Use Image Resizer, select your photo, and enter a target width. ToolMallow calculates the matching height. Work from the original file so you are not repeatedly resizing an already compressed copy.
Crop when the destination needs a different shape
A square profile image needs a square crop. Open Crop & Rotate Image, choose a rectangle that includes the subject, and then resize the square output if necessary. Cropping removes content; resizing changes how many pixels represent it.
Check the output before you share it
View the downloaded image at its intended display size. Fine text, faces, and logos are worth checking. Enlarging an image creates more pixels but cannot recover detail missing from the original.
If the file is still too large
Dimensions and file size are different measurements. Send your resized result to Image Compressor, set the required KB limit, and check the visual quality. Keep the original in case the destination needs a different crop.
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