Use Flickr2Commons tool (https://tools.wmflabs.org/flickr2commons). The images in Flickr needs to be under CC-By-SA license.
There are bots which transfer the file from Flickr to Commons regularly.
I am promoting commons to the photographers I know and to those I follow in flickr.Many use flickr to showcase their works. What are the tools available for photographers to contribute to commons via flickr ?How can we copy their images to commons automatically ?Shrini
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