Can I edit the text in a PDF?
Yes, under the "Edit the text" tab: click inside a paragraph, correct it, and it goes back in the document's own font, in the same place. This is the engine that translates a document while keeping its layout — it reads the original font, removes the old characters and writes the new ones. Two limits, stated up front rather than after the fact: a paragraph we cannot read back is not offered, and a character missing from the document's font is refused as you type it. Whatever you do not touch comes out byte for byte.