You can bulk download stuff from flickr very easily now (which is a great feature), by going to Camera Roll, selecting things, and clicking download. Or you can bulk download your sets/albums now as well. This is handy, but it doesnt export any metadata you added to the photos in the system.
Unfortunately, I found none of the apps are very stable. The most recent and least broken apps are:
- Flickr Downloadr, https://flickrdownloadr.com/
- FlickrMetadataSynchr, http://flickrmetadatasynchr.codeplex.com/
Linux has one good option, but set up takes forever if you have lots of photos,
You want exiftool, nothing else consitantly works to look at metadata.
- Download the complete version, http://www.sno.phy.queensu.ca/~phil/exiftool/
- extract the files
- in the extracted directory, use
./exiftool picture.jpgto look at exif data of the pic without installing. - use
./exiftool -json=picture.jpg.json picture.jpgto write json metadata to the embedded exif data of the image (you get the json or xmp file from other applications).