Microsoft Excel lets you embed content from other applications, including PDF files. You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the ...

The PDF file format gives businesses the ability to create portable documents that users can view on almost any computing platform and in virtually every major operating system. Because of its broad ...

Passwords are universally regarded as the first line of defense in the software world. Be it when setting up a new device or even while opening an online account, — securing it with a password is the ...