(I only use for Fillable PDFs) Firstly there is a limit on how small the text size can be and if you decide to add a few lines in the middle of a paragraph and the text cant get smaller so some of the lower lines go beyond the text box, they just get deleted, with no undo option. Second the text wrapping is not consistent when editing so it can look fine when typing but when you exit some words will be missed by being out of the box. It also annoyingly asks you to sign in every time you open it.