I'm writing a custom image ingest script to read images from a compact flash card and do some initial processing. One of the things I'd like to do is apply a bunch of XMP metadata. It seems like Image::ExifTool can handle this, I'm just not sure the best way.

Photoshop has these XMP Templates that it allows you to apply. These templates are simply XML formatted text files. My reading of the SetNewValuesFromFile docs is that it reads from an image. What I'm wondering is if I can have it read the values in from that plain text file instead.

Is this one of those times when I should have just tried it instead of asking?