The standard defines a MakerNote tag, which allows camera manufacturers to place any custom format metadata in the file.For this reason most image editors damage or remove the Exif metadata to some extent upon saving.
#EXIF DATE CHANGER VIRUS SOFTWARE#
#EXIF DATE CHANGER VIRUS ISO#
This includes static information such as the camera model and make, and information that varies with each image such as orientation (rotation), aperture, shutter speed, focal length, metering mode, and ISO speed information. Digital cameras will record the current date and time and save this in the metadata. The metadata tags defined in the Exif standard cover a broad spectrum: Exif is supported by almost all camera manufacturers. The latest version 2.3 was released on 26 April 2010, and revised to 2.31 in July 2013 and revised to 2.32 on, was jointly formulated by JEITA and CIPA. Version 2.21 (with Adobe RGB support) is dated 11 July 2003, but was released in September 2003 following the release of DCF 2.0. " Exif Print"), dated 20 February 2002 and released in April 2002.
JEITA established Exif version 2.2 (a.k.a. Version 2.1 of the specification is dated 12 June 1998.
The Japan Electronic Industries Development Association (JEIDA) produced the initial definition of Exif.