(Acrobat Standard only) Choose Advanced > Extend Forms Fill-In & Save In Adobe Reader. Other versions of Acrobat ... (Acrobat Pro) Add comments or digitally sign PDFs (File > Save As > Reader Extended ...

How to sign a PDF for free, and 4 other tricks that don’t require Adobe Acrobat Fill out forms, sign on the dotted line, mark up documents for feedback, and much ...