We have all dealt with PDF files at one point or another in our time on the internet or in the office. From tickets purchased online, to business documents from work, school, or government ...

How to Insert Text, Sign a PDF With Adobe Acrobat Reader Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free ...

Ed. note: If you do extensive reading on a computer screen you know how quickly stark black-on-white text can strain your eyes. One Lifehacker reader, tired of straining his eyes, changed the default ...