A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive content safe, ...

一个被加密的PDF文件是很烦人的，因为你不能修改任何页面，不允许复制粘贴，打印等。Unlock-PDF.com可以帮助你解除PDF文件加密口令，实现复制粘贴，编辑，打印等功能。而且这个工具是在线的，无需安装任何软件，也不需要注册，上传一个PDF文件，然后就会 ...

Portable Document Format (PDF) is the only widely used document format for all Office and Professional Communication activities. While often, we might want to copy certain text or images or a complete ...

PDF is the most common file type, which lets share across the world. For increased data security, it is not unusual for PDF files to be protected by a password. When ...

Kofax Power PDF 5 makes it easy to edit, annotate, and secure PDF documents but you have to spend a little more for the advanced version to unlock all its capabilities. Kofax Power PDF has been one of ...