We accept files as jpg and raw (with embedded metadata) taken with the highest resolution and best quality your camera offers.
Consumer-grade photo cameras save photos in JPEG format. Professional SLR cameras save photos in raw formats as well as JPEG. For both types of camera, set your camera to the highest resolution and quality the camera offers. Submit JPEGs, and if you have raw formats, please also submit these but make sure you have embedded the camera metadata in the file.
For scans, use high colour settings (even if the writing is black on white paper) and a resolution of at least 300dpi. Choose tiff as the format and high colour, high quality, 300dpi for the settings.