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Page last updated 07 October 2026

Image transformations are real-time image manipulation and optimization features of the Delivery API that speeds up image delivery. The Image API will process images up to 50MB in size, images larger than this are not processed. As Contensis caches the results of image transformations, you can retrieve the adjusted images even faster the next time you need them.

By adding a sequence of parameters to your image URL, you can enhance, resize and crop images, compress them, or change the format for better performance. These operations can be applied programmatically in real time, removing the need to batch process or maintain multiple copies of an image to match the viewport of different devices.

Resize

The coastal landscape resized to 500 pixels wide

Crop

The coastal landscape cropped to a 400 by 400 square

Rotate

The coastal landscape rotated 180 degrees

Grayscale

The coastal landscape in black and white

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If you still need help after reading this article, don't hesitate to reach out to the Contensis community on Slack or raise a support ticket to get help from our team.
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