The following lines were added (+) and removed (-):
=== Linux PDF Tools: qpdf PDF transformation software ===The qpdf program is used to convert one PDF file to another equivalent PDF file. It is capable of performing a variety of transformations such as linearization (also known as web optimization or fast web viewing), encryption, and decryption of PDF files. It also has many options for inspecting or checking PDF files, some of which are useful primarily to PDF developers.For example, I have a password protected PDF and I know the password, I simply wish to remove password protection: qpdf –password=password –decrypt /home/nicole/Documents/resume.pdf /home/nicole/Documents/resume2.pdfReplace "password" with the actual password of the document. qpdf was installed by default on my Linux Mint 18 system. If it is not installed on yours: sudo apt install qpdf