Information about the file or Data about the Data is called Metadata. For example File Creation Date, Author Name are Metadata.
Purpose of Metadata:-
- Means of creation of the data.
- Purpose of the data.
- Time and date of creation.
- Creator or author of data.
Picture metadata is used to convey additional information about the picture, the scene, the camera, the people in the picture, or other related data.There are Some Standards used in Digital cameras to store metadata in Image.These common Standards are following:-
1.EXIF (Exchangeable Image File Format)
2.IPTC (International Press Telecommunications Council)
3.XMP (Extensible Metadata Platform)
Mostly Digital cameras use the EXIF Standard to store Metadata .For example Nokia Handset use EXIF Format to store Meta data. EXIF (Exchangeable Image File Format) is the most commonly used type of metadata. EXIF is a standard controlled by the Japan Electronics and Information Technologies Industries Association (JEITA). Exif is a variation of JPEG.
Viewing and Editing Metadata:-
You cannot edit the metadata of Image File directly.You need a Software.There are many GUI(Graphical User Interface) and CLI(Command Line Interface) software Present.
I Suggest to you use Photome Metadata Software.You can use Freeware photome Metadata Viewer and editor sotware.(Only 2.9MB)
Features of this Software:-
- Support of Exif tags , IPTC-NAA tags , XMP profile data.
- Support JPEG, TIFF, GIF, PNG, Digital Negative RAW and all common camera RAW file types
- Import & Export of Exif- and IPTC-NAA-data for later import
- Descriptions to many Exif and IPTC-NAA tags
You can download it from here:-
http://www.photome.de/files/PhotoME079R17Setup.exe (For Windows User)
Mac user Can download another Exif Editor from here
Linux user can download another Exif editor from here
You can also edit Image Metadata Online.
Go to==> http://exifremover.com/exifeditor.php
It Support EXIF Standards and allow user to upload image.
About the Guest Author:
This article is written by Mr Roshan .He writes articles related to hacking at roshanhackstudy. .This is his very first Guest post @Hackaholic , If your interested in writing a guest post please contact me