Best PDF Encryption Software for Linux of 2025

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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. Our RESTful API is ready for production, so you don't have to reinvent the wheel when creating your own products and solutions. You have full control over your backend infrastructure. Our private cloud service allows you to control the entire process, including the documents. pdfRest API Toolkit Self-Hosted can be set up in just a few clicks from the AWS Marketplace. You can self-host a production-ready server to integrate the API in your own service or to automate your internal document workflow. Pay-as-you go pricing. Many business applications require complete ownership of your backend with very little or no communication with outside servers. You can create an EC2 instance to host our API, which will give you complete ownership of all files on your server.

Enhance your projects by incorporating powerful PDF editing, parsing, and rendering capabilities using a sophisticated PDF library SDK. This versatile multi-platform shared library (available as dll, so, and dylib) features a C-compatible interface that supports various programming languages, including C#.Net, Python, Java 8, and C++ 11. With APIs designed for Linux, Windows, and Mac, this SDK includes numerous interface functions that allow for the transformation and creation of new PDF content, offering extensive options and flexibility tailored to the unique requirements of your project. It efficiently leverages multi-core CPUs for stream decoding and content rendering, adhering closely to the guidelines of the portable document format specification. Users can also apply electronic signatures, with the choice of including or excluding a cryptographic security layer. Additionally, the SDK provides robust PDF encryption and decryption capabilities, featuring a password-based encryption handler, along with comprehensive document structure manipulation tools for creating, deleting, moving, inserting, extracting, resizing, and rotating pages. This ensures that all aspects of PDF management are covered effectively, making it an invaluable resource for developers.