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Convert Image

github-actions[bot] edited this page Sep 12, 2026 · 1 revision

Convert Image

What it's for: convert an image between JPG, PNG, and WebP.

How to convert an image

  1. Pick: open an image file.
  2. Configure: choose the output format (and quality, for JPG/WebP).
  3. Save: write the converted image to disk.

How the formats differ

  • JPG: lossy, no transparency support, generally smallest for photos.
  • PNG: lossless, supports transparency, generally larger.
  • WebP: supports both lossy and lossless modes plus transparency, usually smaller than an equivalent-quality JPG or PNG.

Quality (default 80) applies to JPG and WebP output; PNG is always lossless regardless of the slider.

Why converting to JPG changes a transparent image's background

JPG has no transparency channel at all, so converting a PNG or WebP with transparent areas to JPG fills those areas with solid white before encoding. If you need to keep transparency, convert to PNG or WebP instead.


See also: Compress Image · PDF to JPG

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