我需要PDF页面删除添加功能

I'd like to be able to edit in PDF without discrepancies between the original version. The best end result. I need to add or delete one sentence, word, or paragraph without having a sudden error-type documentation box with strike-throughs. I hope to be able to do all of the edits and the other changes in formatting-- even if the default was to put some type of annotation, hopefully movable-- on each page. It would save rewriting someone else's version completely for a word or sentence change. The best would be if the font and size could be recognized or even in several common types and sizes.

(I'm talking about filing a lawsuit or response in court where all documents have to be in PDF format).

Could you give me more details(screenshots) or share me your pdf, Marginnote can mark on scanned pdfs, I have not gotten what your problem is, great if you can send me more details.
My email: support@marginnote.com