Image MetaWriter
A batch processing EXIF, IPTC, & XMP image metadata writer for Linux.
... convenient to upload entire albums to many social media & photo sharing sites, such as Facebook & Google Photos. When your photos have the metadata embedded into them, the sites will read all of it & apply it accordingly. You do not have to type out comments for every single image every time you upload your album to a different site. Simply upload your tagged photos, & all comments & other info are applied by each site automatically. Image MetaWriter makes it all fast & easy. It's really great!!!