How to password protect a PDF in Adobe Acrobat Reader and shield your sensitive data

· To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.
· You can password protect a PDF in Adobe Reader by clicking the shield icon in the Acrobat tools sidebar and selecting "Protect using password." 
· When you password protect a PDF, you keep documents like...