PDFEncrypt is described as 'free, open-source utility for Windows that encrypts any PDF file using industry-standard encryption algorithms. Simply select the unencrypted file, enter a password, and the encrypted file is generated' and is an app in the office & productivity category. There are more than 10 alternatives to PDFEncrypt for a variety of platforms, including Windows, Mac, Linux, iPhone and BSD. The best alternative is PDFsam, which is both free and Open Source. Other great apps like PDFEncrypt are PDFtk, QPDF, iSafePDF and Wonderfulshare PDF Protect Pro.
It could have been called something like pdf-to-pdf. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work.
Wonderfulshare PDF Protect Pro is an intuitive software solution designed to help you easily secure and encrypt your PDF files. You can protect your PDF files from unauthorized access after you have set owner-password and / or user-password.
PDF Plus is a powerful PDF processor that will help you merge, split, watermark and crop PDF documents in just three easy steps. For example, if you want to watermark a set of PDF documents with your company's logo, PDF Plus will do the job in just a few seconds.
PDF Mixer is a PDF page tool which mixes pages of 2 or more PDF files, add PDF pages into existing PDF files and save them to a new file. With this powerful tool, you can reorder, copy, rotate, delete, switch and merge pages in multiple PDFs easily.
Now it’s time to give high level of security to your portable documents with Secure PDF program. Set a unique password of unlocked PDF files. Lock unlimited number of PDF files according to your choice password.