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How to Unlock a Locked PDF File in Windows

How to Unlock a Locked PDF File in Windows

Portable Document Format (PDF) is a file format created by Adobe Systems in 1993 for document exchange. Adobe PDF is used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system. Each Adobe PDF file encapsulates a complete description of a fixed-layout 2D document that includes the text, fonts, […]