encrypt PDF online - AI tools

PDF PDF offers a comprehensive suite of free online tools for all your PDF needs, including conversion, merging, splitting, compression, and more.

• Free

LuxPDF is a privacy-focused, open-source PDF toolkit offering over thirty tools for conversion and editing, all processed client-side with no registration, ads, or limitations.

• Free

Online2PDF offers a robust suite of PDF conversion, editing, and management features for free, supporting multiple file formats and advanced customization options.

• Free

DocMadeEasy offers a comprehensive suite of secure, AI-powered PDF management tools for editing, signing, converting, and optimizing documents online.

• Freemium
• From 7$

iLovePDF is a comprehensive online platform offering a full suite of PDF editing, conversion, and management tools designed to streamline document workflows for individuals and businesses.

• Freemium
• From 9$

FoxyUtils is a comprehensive online PDF tool collection offering merge, split, convert, edit, compress, protect, unlock, and measure functionalities with secure cloud-based processing and environmental sustainability initiatives.

• Freemium
• From 3$

PDFAid is a comprehensive online PDF solution offering over 50 free tools for editing, converting, and signing PDF documents with powerful OCR capabilities and cross-platform accessibility.

• Free

PDF.io delivers a suite of easy-to-use online PDF tools for splitting, merging, converting, and protecting PDF documents, with both free and premium access options. Unlock full capabilities to manage and process your PDFs efficiently and securely online.

• Freemium
• From 6$

ZetPDF is a high-performance .NET SDK that enables developers to create, edit, convert, protect, and print PDF documents without requiring Adobe Acrobat, featuring a 100% managed C# codebase with its own rendering engine.

• Pay Once

FixMyPDF offers 75+ free, browser-based PDF tools for compressing, converting, editing, and securing PDFs. All processing happens locally on your device, ensuring 100% privacy with no file size limits or registration.

• Free

PDF2Go is an online PDF editor and converter offering 30+ tools to edit, merge, split, compress, and convert PDF files with AI-powered features for enhanced productivity.

• Freemium
• From 23$

API2PDF provides a powerful REST API enabling developers to generate, convert, and manipulate PDFs and documents at scale using leading rendering engines and serverless infrastructure.

• Usage Based
• From 1$

Sejda is a comprehensive PDF editing and management platform offering over 30 browser-based tools for tasks like editing, merging, splitting, converting, compressing, and securing PDF documents.

• Freemium
• From 8$

Advanced PDF Editor is an all-in-one PDF editing solution for Mac, offering over 40 features to edit, merge, convert, sign, and secure PDF files with ease and efficiency.

• Freemium
• From 4$

Bitwar PDF Converter is a desktop software that converts PDF files to various formats like Word, images, and HTML, while offering editing tools such as merge, split, compress, and lock/unlock, all processed locally for security.

• Other

PDFmyURL is a powerful HTML to PDF API and online tool that converts web pages, entire websites, or raw HTML into high-quality PDFs with advanced formatting options.

• Paid
• From 20$

PDF Password Remover is a one-click decryption tool that unlocks all PDF restrictions, enabling editing, copying, and printing of protected files. It supports batch processing on Windows and macOS platforms.

• Free Trial

PDF Anti-Copy is a Windows PDF security utility that reprocesses text and graphics to prevent copying, conversion, and printing, while maintaining original formatting and quality.

• Other

PDF Buddy is a secure, web-based PDF editor that allows users to edit, fill, sign, and manage PDF documents directly in their browser. The tool offers convenience, safety, and an eco-friendly solution for managing PDFs without any software installation.

• Freemium
• From 8$

PDFCompressor provides a fast and secure way to compress PDF files online for easier sharing and storage, supporting up to 20 files at a time.

• Free

YellowPDF is an AI-powered online tool that offers a comprehensive suite of PDF management features including merging, splitting, compressing, converting, editing, and securing documents.

• Other

YourPDF is a browser-based tool for merging, splitting, rotating, and cropping PDF files, ensuring 100% data privacy by processing everything locally without uploads.

• Free

PDFGate is a professional HTML to PDF conversion API service that offers advanced browser-based rendering powered by Google Chrome, with robust security features and easy integration options.

• Paid
• From 9$

VancePDF offers a suite of online tools for managing and converting PDF documents, featuring AI-powered OCR technology for accurate PDF to Word conversions.

• Freemium

Able2Extract Professional is a comprehensive PDF conversion and editing software that accurately converts PDFs to Excel, Word, AutoCAD, and other formats while retaining original formatting, with batch processing and OCR capabilities.

• Pay Once

PDFinity is a comprehensive online PDF management platform offering tools to edit, convert, compress, split, merge, and sign PDF documents without requiring software downloads.

• Freemium

LEOPDF is a free offline PDF toolkit that enables efficient PDF conversions, merging, splitting, and organization without internet dependency, ensuring user privacy and unlimited file size handling.

• Free

ILovePDF3 provides a comprehensive set of free online tools for editing, converting, and managing PDF documents, images, and other file formats, catering to both individuals and businesses seeking simple digital document solutions.

• Free

Systweak PDF Editor is an all-in-one Windows software that enables users to edit, convert, sign, protect, and compress PDF files with advanced features including OCR and batch processing.

• Freemium

Text Encrypter is a free, secure AI-powered tool that encrypts and decrypts text data locally in your browser using AES-256 CBC algorithm, ensuring private data protection without internet connectivity.

• Free