GET
/
transform

The max_bytes transformation automatically degrades the quality of the image until the image is under the specified amount of bytes.

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How to use

Pass the following query param max_bytes=amount to the API endpoint.

The amount represents the maximum file size in bytes that the image should not exceed.

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Notes

  • The amount should be a positive integer representing the maximum number of bytes.
  • The actual file size of the resulting image may be slightly less than the specified amount.
  • This transformation may result in a loss of image quality, especially for larger reductions in file size.
  • There is no upper limit to the amount parameter, but it should be reasonable for image files (typically under 10,000,000 bytes, or 10 MB, for web use).

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Original Image

URL: https://www.thunderimage.com/sample/yosemite.jpg

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Image with Max Bytes Set

URL: /transform?url=https://www.thunderimage.com/sample/yosemite.jpg&max_bytes=51200

In this example, the image is limited to a maximum size of 50 KB (51,200 bytes). The visual difference may not be noticeable for small reductions, but larger reductions can impact image quality.

Authorizations

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x-api-key
string
headerrequired

API key required for authentication

Query Parameters

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url
string
required

The URL of the image to be transformed.

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background_color
string

Sets the background color of a transparent image. Accepts a color name or hexadecimal RGB expression without the “#” character.

Response

200 - image/png

The transformed image in PNG format.

FormatMax Frames