Need to add text to a PDF that doesn't support editing? No problem -- and no extra software required.

Sometimes you need to sign or fill out PDF forms while you're away from your Mac. Here's how to get that paperwork done on your iPhone or iPad.

This post will show you how to convert a PDF document to a fillable form in LibreOffice. A PDF can be used as a file to create a form with blank fields like text areas.

PDFs tend to be the preferred format of HR managers and others who you have to fill out forms for, leaving you to print, write out, and mail or fax the paper document back to them. Skip all that ...

With Adobe Acrobat Reader and Adobe’s online PDF editor, you can add comments, fill out forms, insert text, and even sign documents – all for free.

Some PDFs files have interactive fields to fill in data (such as on forms). Using Firefox’s built-in PDF viewer you can fill out fields such as text, checkboxes and radio buttons.