If you’ve already added text information to your photos as file or folder names, or using applications like Windows Photo Gallery or Picasa you can transfer this data to the image pixels using Caption Pro’s Auto-caption facility.
If
you want better captions for your Google Photos albums, Caption Pro can
create them or import what you’ve already added to give you results
like this. Find out how to do it here.
Caption
Pro can also create captions from the IPTC and XMP metadata fields used
by professional photo software such as Adobe Photoshop, Lightroom or
BreezeBrowser.