I have 50,000-plus JPG files which I've tagged for easy lookup by user-selected keywords. The database which matches image files with their keywords is proprietary and utility-specific. I want to switch to embedding keywords in each image's IPTC keyword metadata field so that I'm not dependent on any one utility and its database. I can manipulate my current database to yield a CSV or TXT file containing each image's pathname and the keywords assigned to each image. Is there a utility which can batch write multiple IPTC keywords to image files across multiple folders, using a CSV or TXT file as input? IrfanView and Zoner Photo Studio can batch write IPTC keywords, but only in one folder at a time, and neither appears to accept CSV or TXT file input. I'm dealing with several hundred folders and a couple dozen keywords. Photo Mechanic might be able to do it but I'm running Windows XP, and Photo Mechanic for Win XP is no longer available.
Thanks in advance!