Best PDF Encryption Software

Compare the Top PDF Encryption Software as of April 2025

What is PDF Encryption Software?

PDF encryption software is a type of program used to protect documents in the PDF format. With it, users can protect the contents of their documents by setting passwords and restricting certain editing permissions. It can also be configured to set expiration dates for documents, ensuring that they remain secure until a specified time. By encrypting PDFs, users are able to keep their sensitive information safe and secure from unauthorized viewing. Compare and read user reviews of the best PDF Encryption software currently available using the table below. This list is updated regularly.

  • 1
    pdfRest

    pdfRest

    Datalogics Inc.

    pdfRest API Toolkit was made by developers, for developers. Rapidly integrate PDF workflows with any business application, simply and seamlessly. pdfRest API Toolkit includes all of the PDF processing tools you'll need, to make your job easy. PDF to Word, PDF to Excel, PDF to PowerPoint, Add to PDF, Query PDF, Extract Text, Convert to PDF, PDF to Images, Convert to PDF/A, Convert to PDF/X, Compress PDF, Linearize PDF, Flatten Forms, Flatten Transparencies, Flatten Annotations, Flatten Layers, Merge PDFs, Split PDF, Encrypt PDF, Decrypt PDF, Restrict PDF, Watermark PDF, Import Form Data, Export Form Data, Convert PDF Colors, OCR PDF, API Polling, Upload Files, Zip Files. Get up and running fast with the pdfRest Postman Collection or start from functional sample code in .NET, JavaScript, Python, PHP, and cURL from the pdfRest GitHub repository. Gold-standard processing powered by Adobe® PDF Library™ ensures the highest quality results. Free to get started with no commitment.
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    Starting Price: $0 per month
  • 2
    Foxit PDF Editor

    Foxit PDF Editor

    Foxit Software

    Edit your PDFs with powerful yet easy workflows across desktop, mobile, and web - whether you’re at the office, home or on the go. Foxit PDF Editor provides a cost-effective solution for business professionals to work securely with PDF documents and forms. It provides a full featured platform to view, create, edit, collaborate, share, secure, organize, export, OCR, and eSign PDF documents. With its enterprise functionality, integration, and mass deployment capabilities, combined with its affordability, it makes a great alternative to evaluate when yearly subscriptions of existing PDF solutions expire. Foxit PDF Editor comes in two editions-PDF Editor and PDF Editor Pro. Foxit PDF Editor is perfect for individuals and groups of knowledge workers who need to create, review, edit, manage, share, and secure PDF documents. PDF Editor Pro builds upon PDF Editor by providing knowledge workers with additional editing, collaboration, and security capabilities required in larger organizations.
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    Starting Price: $14.99 US per month
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    pdfRest API Toolkit Self-Hosted
    pdfRest API Toolkit Self-Hosted is available on the AWS Marketplace and can be spun up in just a few clicks. Self-host a production ready server to integrate the PDF processing API Toolkit into your own service or to automate your internal document workflow. Watermark PDF, Add to PDF, Query PDF, Convert to PDF, PDF to Images, Convert PDF Colors, Convert to PDF/A, Convert to PDF/X, Compress PDF, Linearize PDF, Flatten Annotations, Flatten Layers, Flatten Transparencies, Merge PDFs, Split PDF, Encrypt PDF, Decrypt PDF, Restrict PDF, Extract Text, OCR PDF, Upload Files, Zip Files. Maintain full control with a dedicated EC2-based RESTful API with scalable performance to meet your needs. Built with Adobe PDF Library, the same technology that powers Adobe Acrobat, and developed by Datalogics, globally-trusted document processing experts for over 50 years, pdfRest has the gold-standard API Toolkit for high-quality PDF processing.
    Starting Price: $0.242 per hour
  • 4
    Locklizard Safeguard PDF Security
    Locklizard protects PDF files and other digital documents from piracy, leakage and misuse. We stop unuauthorized access to documents and control how authorized users can use them. Stop theft of confidential and sensitive information, intellectual property, trade secrets, training courses, reports, ebooks, etc. Share and sell documents securely, stop data leakage and enforce compliance. Lock documents to devices and locations, dynamically watermark content, control expiry, stop printing, editing, copying and screen grabbing, and revoke access at any time. Track how your documents are being used. Locklizard uses strong US Gov strength encryption, DRM and licensing controls to ensure your documents remain fully protected at all times regardless of their location.
    Starting Price: $500.00/month
  • 5
    DRM-X

    DRM-X

    Haihaisoft

    DRM-X 4.0 content protection platform, with new security architecture and more advanced security features. You can securely distribute protected Audio/Video, PDF, Web pages, Images and Javascript to Windows, Mac, iPhone/iPad and Android. With DRM-X 4.0 protection, you can get rid of the problem that you cannot effectively deliver and sell these contents due to piracy. DRM-X, Haihaisoft's digital rights management platform. Haihaisoft provides DRM as a service. The copy protection platform includes: File Encryption, Audio/Video Encryption, PDF Encryption, and Web Page (HTML DRM Encryption), all of them with DRM-X 4.0 advanced DRM features, and you can manage users, groups, rights and license profiles online in your DRM-X account. DRM-X 4.0 is a new generation DRM software platform based-on Xvast browser. It with new security architecture, support online/offline playback, improved user experience. DRM-X provides dynamic watermarking capabilities on protected digital content.
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    Investintech PDF Library SDK

    Investintech PDF Library SDK

    Investintech PDF Solutions

    Seamlessly integrate robust PDF editing, parsing and rendering functionalities into your projects with PDF library SDK. Multi-platform shared library (dll, so and dylib) with C-compatible interface. C#.Net, Python, Java 8, C++ 11, libraries/modules. APIs for Linux, Windows, and Mac. Numerous interface functions for transforming and creating new content for PDF files, providing a huge variety of options and broad flexibility for implementation tailored to the specific needs of your project. Efficient utilization of multi-core CPUs for stream decoding and content rendering purposes achieved by closely following portable document format specification guidelines. Apply electronic signatures (with or without cryptographic security layer). PDF encryption & decryption (a password-based encryption handler). Document structure manipulation (create, delete, move, insert, extract, resize, and rotate pages).
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