The IPTC (IPTC: International Press Telecommunications Council) wanted to create a standard to save common information along with an image platform and application independently. This standard is the IPTC-data or IPTC-format respectively. The most important data are the title, the author, the copyright, an internet URL and the picture comment. Aside from this, the IPTC-data can contain keywords
Not all file formats can save this information. All information can be saved by using the PLD, the JPEG, the TIFF- and the PSD format. Some information is saved by using PDF, GIF and ANI.
Nowadays, IPTC data are often embedded in the XMP data and not stored separately.