Remove Restrictions and Decrypt Password Protected PDF Files With PDF Unlocker

Users will agree PDF is a great format for displaying and distributing documents to others as it can keep the originality of the documents. Many professional papers, manuals, tutorials, ebooks, etc available in the internet are mostly in PDF formats. Users can easily download them and use viewer to read them. However, on some occasions, users might experience difficulty printing or copying texts in PDF document downloaded from the internet; the PDF file may prevent them from doing so. This is because the original author might have encrypted the file and imposed some restrictions such as preventing users from printing, modifying, editing, copying, etc.

Technically there are two types of standard encryption methods used as a security measure for PDF files. The PDF file owner can choose to protect his PDF file by applying “user password” or “owner password”. By protecting a PDF file with ‘user’ password, the owner can prevent others from opening the file. If the owner just wants to impose restriction such as prevent printing, copying of text and graphic, modifications, etc, the owner can protect the document with ‘owner’ password. Files protected by both the ‘user’ or ‘owner’ passwords might not be so easy to crack and force open. However, there are some useful applications that can help users if users are stuck with these problems. One of the useful and free tools that can help users when they are stuck with both the user and owner password protected PDF file is PDF Unlocker.

PDF Unlocker is a free yet user-friendly tool which can be downloaded via the link here. Once it is installed, users can create a PDF Unlocker shortcut icon on the desktop. To decrypt the ‘owner’ password, what users need to do to unlock the file is just drag the protected file to the PDF Unlocker icon. Immediately the tool will decrypt the owner password and remove the restriction imposed on it. Users will then be allowed to print, copy, modify, etc. To unlock the restriction imposed by ‘user’ password, users have to right click and select “Remove PDF Password” and close the application.

PDF Unlocker works well with Windows Vista, Windows XP and Windows 7.