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Resize an image in GIMP and export a separate copy

This is the procedure to leave the original image, reduce the pixel dimensions, and export it to JPEG/PNG. We will explain in detail the starting position, setting values, completion confirmation, and how to review in case of problems.

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Resize an image in GIMP and export a separate copy overview: Check preparation and starting position, Open and configure features, Complete and check results, Fix the problem and exit safely
An overview of this guide’s steps and checks, not a screenshot of the app.

Who this guide is for and what to prepare

  • First-time users of GIMP
  • People who want to safely check the operation of shrinking an image and saving it under a different name in GIMP

What you need

  • Make a copy of the original image and decide on the maximum width required for your purpose and whether to use PNG or JPEG.

Check preparation and starting position

Make a copy of the original image and decide on the maximum width required for your purpose and whether to use PNG or JPEG.

Open and configure features

  1. Open the image with [File] > [Open], then select [Image] > [Scale Image]. Keep the width and height linked while entering the new width.
  2. Choose an interpolation method and select [Scale]. Use [File] > [Export As] and save the result with a .png or .jpg extension.

Complete and check results

  1. Check the quality for JPEG and compression settings for PNG before exporting. Open in an image viewer to check pixel dimensions, aspect ratio, and legibility.

Fix the problem and exit safely

[Save] is an operation that creates an XCF for editing and does not become a distributed image. Do not overwrite the original image, and do not expect image quality recovery by enlarging after reduction.

  1. If you need transparency, choose PNG. JPEG cannot preserve transparent parts, and image quality deteriorates with repeated saving.

Limitations and requirements

  • [Save] is an operation that creates an XCF for editing and does not become a distributed image. Do not overwrite the original image, and do not expect image quality recovery by enlarging after reduction.

Frequently asked questions

What if you can't find the item you want in GIMP?

If you need transparency, choose PNG. JPEG cannot preserve transparent parts, and image quality deteriorates with repeated saving.

What should I be especially careful about when reducing an image in GIMP and saving it under a different name?

[Save] is an operation that creates an XCF for editing and does not become a distributed image. Do not overwrite the original image, and do not expect image quality recovery by enlarging after reduction.

Official sources and verification date

Sources checked: . Check the official sources below for changes to supported systems, plans and menus.

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