PDF documents are used to share documents for professional use and many authors like to set passwords to protect their eBooks. It is reasonable for them to set restrictions to prevent others from stealing or tempering with their works by editing, copying or printing them. However, sometimes PDF files do not involve copyright are secured for some unknown reasons which make us inconvenient. So, we need a way to remove password on PDF. Here, we recommend PDF Password Remover to help you remove password security from your PDF files, so that you can copy, print and share your PDF files at you want!