Consume Product

Apparently some people on 4chan found out how to remove the redaction. The word is that all you have to do is highlight the redacted text, copy it and then paste it into another WordPad or similar software to see the text underneath.

Anything interesting in the redacted text?

I do that with my saved passwords too sometimes, when I need to know what they were exactly. The fields that only show stars are a text field that is set to mode "password." Just inspect the website, remove the mode, and it becomes an ordinary text field that shows its content normally.

Regarding the PDF files, the actual text could be analyzed programmatically. It's not as simple as opening it with Notepad++, because it only shows arbitrary bytes converted to characters, but with some effort it could be deciphered too. For example there may be libraries that can handle PDF files, so you could output it ignoring the redacted parts. The text is literally in the file.