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What is EXIF?

Exchangeable image file format (EXIF), created by the Japan Electronic Industry Development Association (JEIDA) was developed as an image file format used by digital cameras. The specification uses specific metadata tags with the existing file formats such as JPEG, TIFF and RIFF WAVE audio file format. The metadata tags defined in the EXIF standard cover a broad spectrum including:
  • Date and time information. Digital cameras will record the current date and time and save this in the metadata.
  • Camera settings. This includes static information such as the camera model and make, and information that varies with each image such as orientation, aperture, shutter speed, focal length, metering mode, and film speed information.
  • Location information, which could come from a GPS receiver connected to the camera.
  • Descriptions and copyright information.
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