This software provides a graphical user interface to effectively manage XMP metadata on GNU/Linux operating systems.
But, why should you use metadatas? Metadatas allow you to attach more information to your files, such as descriptions, authors, and even coordinates. By embedding these data into the image file, you won't lose them even if you upload the image on a website or burn them onto a DVD.
In terms of using XMP, there are several advantages to consider. XMP is an extensible schema proposed by Adobe. This means that your EXIF, IPTC, JFIF and other metadatas can still live alongside XMP. One of the main advantages of XMP is that it is extensible and XML-based. This means that if you need more fields, you don't have to reinvent the wheel or use another incompatible standard, but just create a new schema.
Additionally, XMP is the embedded preferred format for the Creative Common License. It's also file-type independent, and supports JPEG, PSD, TIFF, AVI, WAV, MPEG, MP3, MOV (via XMP Toolkit version 4.0). Overall, Xmp Manager is a good tool for managing XMP metadatas on GNU/Linux, even with its limitations as experimental software.
Version 0.49: N/A