https://this-person-does-not-exist.com/en

NewPipe, just see what you want to see

The blurred version of the blurred version in your post is ok. Maybe It needs more blurring?

The most efficient system...

I've confused the name, It was LibreOffice Draw, not Writer

.jpeg for photos

I've already edited some pdfs with LibreOffice writer. I don't know if it's suitable for that, but it worked for me