PDF Unlocker is a program used to unlock PDF protected. Some documents or electronic books (e-books) can be protected by its author by password, so that the texts can not be copied, the images extracted, or the printed text.
To unlock a PDF file you can drag it to the window of this application, so that, after processing, a new file is generated without restrictions that will have the same name but with another extension ("_noPW" is added).
It is also possible that a document has been password protected and forgotten. With this application it is possible to recover the PDF password.
Another utility that has the application is an EPS to PNG converter. This can be used to pass images from PDF to PNG.
Freeware PDF Unlocker 2.0 is the latest version of this software, updated in July 2012, which can be downloaded and installed free on all versions of Windows. This new edition also supports Windows 7 64-bit and Windows 8.