Most of the digital cameras and the cameras included with smartphones save some or other sort of the metadata information in the saved image files. This metadata information can be of many different formats such as EXIF, IPTC, XMP an TIFF. This metadata can contain important information for the captured image data such as the make and model of the camera, the focal length of the lens uses, the geo-location coordinates where the image was taken, the orientation in which the camera was held and more.
We can view this metadata information embedded inside the digital images using any image viewers like IrfanView, XnView and ACDSee Image Viewer. But if you want to edit this metadata manually, then you can use a software called Metalith. It is a powerful metadata editor that is available completely free without any restrictions.
The main advantage of the software is the ability to edit any number of files at the same time. Metalith supports various metadata standards as well as various file formats.
Metalith supports all major metadata standards such as TIFF, EXIF, IPTC, XMP, DCF, DNG, JFIF, ICC, IRB, MPF, DC, PLUS, PRISM. It supports many image file formats such as TIFF, JPEG, DNG and MPO files. In addition, it also supports many RAW image file formats such as Sony ARW, Canon CR2, Canon CR3, Nikon NEF, Nikon NRW, Olympus ORF, Pentax PEF, Fujifilm RAF, Panasonic RW2 and Samsung SRW RAW.
It allows you to read, analyze, modify, delete and create the metadata of all these types. You can also compare the metadata of two files and copy the content from one to the other. It also allows you to save GPS data, display tag descriptions, thumbnails and full-screen images. It is also able to export the metadata to HMTL, XML and reports.
You can download Metalith from http://www.metalith.ru/en/index.html.