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Hi everyone. My question concerns the right to use fonts. I haven't found any posts on the forum that answer this question. I design fonts that I sell on marketplaces. Most of these marketplaces don't give any information about the buyers, so I can't know the identity of my customers. Recently I've seen that 2 publishers are using one of my fonts for their covers. I assume they bought the license for the font, but how would I know ? How can I know if they have the right to use the font ?