Format: fm

The fm parameter converts the image to the specified format. The following formats are supported:

  1. JPEG
  2. PNG
  3. GIF
  4. WEBP

Output quality: q

Controls the output quality of the image for lossy formats (jpg and webp).

Valid values are in the range of 0-100 and the default set to 75. If the Save-Data client hint is enabled, q is set to 45