if you’re using picasa to organize your photos, and upload them to your wordpress blog, facebook and/or google+, you’ve probably noticed that sometimes the picasa caption doesn’t show up on the web.
the reason for this is apparently a number of metadata fields (e.g. caption, description, and title fields in either EXIF, IPTC or XMP metadata) that are used differently depending on the software you use.
to solve this problem, i’ve created a custom picasa button that will copy your picasa caption (caption-abstract) to the relevant XMPC:title field that is used (amongst others) in wordpress as the attachment title. the most important line of code is the following exiftool command:
exiftool.exe -overwrite_original -"xmp:description>xmp:title" *.jpg
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