4 Ways to Unlock a PDF When You Don’t Know the Password 4 Ways to Unlock a PDF When You Don’t Know the Password PDF files are widely used for many different purposes, including sending important documents, sharing files, and storing data. However, sometimes we need to unlock a PDF file for editing, but we don’t know the password. In this article, we will discuss four ways to unlock a PDF file when you don’t have the password. How to Unlock a PDF without a Password Using Lumin Lumin is a web-based PDF editor that allows you to unlock a…