We periodically field questions about password-protecting a PDF to prevent the wrong people from reading it. Lawyers want to ensure that drafts of legal documents don’t fall into the wrong hands, financial advisers want to keep confidential financial information private, and authors want to prevent their writing from being shared broadly on the Internet. Others don’t worry so much about a document being read but want to ensure that it can’t be changed or printed.
PDF provides options for password-protecting documents for just these reasons, and you can add such protection to your PDFs in both Apple’s Preview and Adobe Acrobat. We’ll explain how to do that, but before we do, we want to share some best practices to increase the likelihood that your PDFs will remain protected as you wish. Read More from “Want to Password-Protect a PDF? Follow These Best Practices”