Apps similar to Secret PDF include PDFTK Builder, which is free and open source. Other options are PrintOnly, PDF Unshare, PDFEncrypt and QPDF. You can choose from more than 10 Document Managers like Secret PDF for Windows, Android, Mac, iPhone and Linux.
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.
United Kingdom
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.
China
FileOpen RightsManager is a client/server solution for encrypting and managing access to documents from your desktop. With RightsManager, you encrypt your documents locally, so there is no need to upload unencrypted documents to an unknown server.
Vitrium provides content security solutions and DRM that empower businesses that create, publish, or distribute proprietary, confidential or revenue-generating content. Vitrium protects and controls your videos, documents and images.
Canada
Batch PDF Encryptor is a handy but powerful software tool designed to encrypt and restrict multiple PDF files in bulk by adding open passwords, setting printing restrictions, and prohibiting text copying to PDFs.
United States
IGnissta PDF Lock Unlock Tool is a quick and easy to lock your personal PDF files with passwords and unlock PDF copy, print, edit securities, which offered you in free PDF unlocker demo version. Our efficient secured PDF unlock tool helps you to remove PDF restrictions.
India
