Diễn đàn hỗ trợ Tất cả sản phẩm

I often save to PDF or mark text then transfer it into a document. Firefox renders many letter combinations as ligatures: ff, fi, ffi, fl, and more. I don't want ligatures. The cures proposed have involved forbidding pages to use their own fonts. Is there another way?

I just searched for a pdf editor on my android phone and it came up with pdf editor instructions....but none of the options appear on my Firefox on android... Why not please?