Permanently remove names, amounts, addresses or any phrase you specify — not cover them with a black box, actually delete them from the file.
The famous leaks all look the same: a document with black rectangles over sensitive words, where the words are still underneath, selectable and copyable. Drawing a shape over text hides nothing. Real redaction removes the characters from the content stream and takes the area with it, so what remains cannot be selected, searched or recovered by removing the box.
Tell the tool which words or phrases must disappear; it finds them wherever they appear — in the body, in a header, in a table cell — and removes them. That is safer than drawing rectangles by hand, because a name that also appears in a footnote gets treated too.
After redacting, search the result for the term you removed: it should return nothing. Also look at the metadata, and remember that a scanned page needs OCR first, otherwise the sensitive text is pixels and only a visual box can cover it.
Yes — this is true redaction: the content is deleted from the page, not covered.
Run OCR first so the words exist as text; otherwise only the image can be painted over.
Yes, list every word or phrase that must disappear in one run.