ICO is a image format: it bundles multiple raster images at different resolutions (16x16 through 256x256) into a single file for use as application icons. CR2 is a image format that stores data in the CR2 format. This conversion changes the file's encoding, compression method, and supported feature set. Colour profiles and orientation metadata are preserved in the output. Converting between these two formats is common when the source application does not support CR2 natively or when the target platform only accepts CR2. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.