Wonderfulshare PDF Protect Pro Alternatives

PDFTK Builder is a free graphical interface to for PDFtk, making it much easier to use. It is a easy to use tool to collate (merge), split, encrypt, decrypt, stamp and rotate (only 90°, 180° or 270°) pdf documents.

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.

PDFEncrypt is a 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.

PDF Architect is a PDF Editor with free functions like rotate, delete and move pages and even more like editing text, PDF to Word, 256 Bit AES Encryption and more.

PyPDF2 - A utility to read and write pdfs with Python.

PDFTools is a PDF management application. It can encrypt, decrypt, join, split, stamp, create and rearrange a PDF file.

iSafePDF is a free open source PDF protection software.

It allows you to encrypt PDF document, sign them using a certificate and timestamp the signature.

All those features are PDF standards so your document will be readable/editable with all standard PDF programs.

FileProtect provides a secure digital rights management (DRM) wrapper around all your sensitive files, including Adobe PDF and Microsoft Office (Word, Excel, Powerpoint). With FileProtect, there are no plugins to install or update — it all just works.

Locklizard Safeguard PDF Security provides total PDF DRM protection and control over your documents through a multi-layered protection mechanism that does not rely on passwords.

PDF Unshare is a free PDF content protection utility that creates unshared PDF and UPDF formats to protect your PDF files from sharing, printing, editing, copying or unauthorized accessing.