x-ray is a Python library for finding bad redactions in PDF documents. Why? At Free Law Project, we collect millions of PDFs. An ongoing problem is that people fail to properly redact things. Instead of doing it the right way, they just draw a black rectangle or a black highlight on top of black text and call it a day. Well, when that happens you just select the text under the rectangle, and you can read it again. Not great. After witnessing this problem for years, we decided it would be good to...