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Checks

Resources

This page provides information on the formatting and decoding of check images returned by the check image API. 

Image format

The API returns both the front and back images of a check as Base64-encoded strings. Base64 encoding converts binary data, such as images, into text suitable for transmission over the internet.

Decoding Base64 string

To render or save the images, clients must decode the Base64 string. Most programming environments provide built-in libraries or tools for decoding Base64. Once decoded, the images can be integrated into your system or workflow as needed. 

  • For more information about check images, see Overview.
  • For more information about check image parameters, see Parameters.

Next steps

Learn how to initiate a check image request.