Free PDF Protector 4dots- Installation Instructions
To install the application run the PDFEncrypterSetup.exe.
Press the "Next" button in the first screen.
Afterward, select the directory where the application will be installed, or simply accept the default one and press the "Next" button.
If you want to protect PDF documents with a right click in Windows Explorer you will have to check the "Integrate into Windows Explorer" option.
After the application is installed you can start it by clicking the Free PDF Protector 4dots shortcut icon on the desktop or by selecting the Free PDF Protector 4dots shortcut from the Windows start menu.
Alternatively, you can select PDF Documents in the Windows File Browser (Windows Explorer) and then right-click on them and select "Encrypt PDF" from the menu.