PDF files are one of the widely used file formats to carry important information. In order to protect privacy, many people protect PDF files with a strong password so that no one without knowing the password can open the file. But what if the person forgets the password himself? To avoid such incidents and to open, read, or print password protected files, you can use a freeware called PDF unlocker.
Generally PDF file passwords either restricts few functions like printing, copy & paste, etc, or restrict from opening the file at all. Mostly bank statements, credit card statements, important information by financial institutions come with a strong password lock so that it don’t get misused.
Let’s come to the point straight. Before you follow the following steps, I will assume that you have already downloaded PDF unlocker from here and installed on your system.
Print Common Password Protected PDF Files
In case you want to achieve some common tasks such as copy paste, print, etc, drag the locked PDF file and drop it on the PDF Unlocker icon (located on the desktop). It will then create an another PDF file with all information from the original file but without a password. Now use that in whatever way you want.

Read or Open Strong Password Protected PDF Files
Right click on Remove PDF Password link and choose edit. Now directly after -sPDFPassword= place open password, without quotes.

Hit Close and save the file. Now drag and drop the PDF on to the link on your desktop. This will generate a new file with no password restrictions
Now you don’t need to worry about reading, printing or opening PDF files with password protection.