Maybe there was a time when you wanted to lock away certain pages in a PDF, but you didn’t have the tools to get it done. Well, those days are over due to the release of an interesting software known ...

Adobe's PDF format allows you to combine text and images into portable document files which are easy to share with employees, print or store for later use. As the creator of a PDF file, you can ...

Encrypting files, folders, and drives on your computer means that no one else can make sense of the data they contain without a particular decryption key—which in most cases is a password known only ...

Most of us share documents via email. But what if it’s a digital copy of your birth certificate, a sensitive medical record, or a confidential legal document? I want to ensure that only the intended ...

With a few steps you can set up an easy way to encrypt PDF files generated from the standard print dialog window. Topher, an avid Mac user for the past 15 years, has been a contributing author to ...

If you want to protect sensitive data -- especially if you’re sending it via email or via an online service -- one of these programs can help. While safeguarding personal and business data has always ...

While PDFs are generally regarded as fairly stable files, there’s a lot you can do with them on both Linux and other systems. This includes merging, splitting, rotating, breaking into single pages, ...

The key used for these kinds of symmetric encryption is called as File Encryption Key (or FEK). This FEK is in return encrypted with a public or a private key algorithm like RSA and stored with the ...

Working with a PDF file often means editing or modifying it to achieve your objective. However, as easy as it is to view a PDF file, the same can’t be said about performing other operations, as many ...