[bmelton]

It's MIT-licensed, so just fork it and start working on it. People searching for it by title will likely find it after a while regardless. If you can get watchers/participants and a solid commit history, it may eventually supplant the original as the first search result on Github.

[touristtam]

Try to communicate with other contributors that have pending pull request (see https://github.com/euske/pdfminer/network). You might be able to drive a decision to keep a single repo, maybe under a 'new' organisation.