MyWorkingArea

tool image

Create thumbnail

Generate a thumbnail with custom size and format.

Reviewed practical guide

How to use Create an image thumbnail and verify the result

Fits the image inside a maximum 400 × 400 pixel box without enlarging it.

Confirm that a proportional, uncropped thumbnail suits the container where it will appear.

Practical example: Generate lightweight previews for cards in a catalogue. Post-process verification is part of the workflow: a successful download alone does not prove that the content is correct.

What result to expect

A copy up to 400 pixels wide and high in a compatible source format.

When this is useful

  • Generate lightweight previews for cards in a catalogue.
  • Create a variant for a specific destination while retaining the highest-quality source.
  • Repeat the process with different settings and compare both results.

Checks before sharing

  • Check actual dimensions, framing, legibility and downloaded file size.
  • Keep the source image and check its dimensions, format, orientation and transparency before editing it.
  • Do not replace the source until you have opened the download and validated the complete result.

Limitations to understand

  • Size and fit are fixed; a small source is not enlarged and the output does not replace the original.
  • Files are processed to perform the operation and are subject to the temporary-storage policy; do not upload material you are not authorised to handle.
  • The tool automates one specific operation; review the result whenever it will support a decision, publication or delivery.

Frequently asked questions

What should I prepare before starting?

Keep the source image and check its dimensions, format, orientation and transparency before editing it.

How do I know whether the result is correct?

Check actual dimensions, framing, legibility and downloaded file size.

What does this tool not solve?

Size and fit are fixed; a small source is not enlarged and the output does not replace the original.

Editorial review: MyWorkingArea team

Checked against the options and output of the current tool.

Content reviewed on 11 August 2026.

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