Draw | Download

: A free, open-source alternative to Microsoft Office. It is excellent for editing PDFs; you can draw text boxes over existing documents to add your own notes.

For computers, you often don't need a new download if you already have standard productivity software: Download Draw

: Built into most Windows PCs. Use the Draw tab to sketch, and the Insert tab to add text boxes that can be moved anywhere on the page. : A free, open-source alternative to Microsoft Office