Earlier quoted context omitted.
Never trust a lawyer with a redact tool any more complicated than a marker. I've seen lawyers at major, high-priced law firms make this same mistake. Once it was a huge list of individuals names and bank account balances. Fortunately I was able to intervene just before the uploaded documents were made public. Folks around here blame incompetence, but I say the frequency of this kind of cock-up is crystal clear teleme…
I think it's part laziness here. Placing a black rectangle on a PDF is easier than modifying an image or removing text from that same PDF.
https://www.adobe.com/acrobat/resources/how-to-redact-a-pdf....
That failed redactions happen over and over and over is kind of amazing.