Your trusted partner for professional PDF processing. Fast, secure, and easy to use — built for everyone.
At PDF-Ninja, we believe that professional PDF tools should be accessible to everyone — not locked behind expensive subscriptions or bloated desktop software. That is why we built a free, browser-based PDF toolkit that anyone can use, from any device, anywhere in the world.
We founded PDF-Ninja to solve a simple problem: working with PDFs should not be complicated or expensive. Whether you need to merge documents, convert formats, sign contracts, or extract data, our tools are designed to get the job done in seconds — without downloads, without accounts, and without cost for basic operations.
Our commitment goes beyond convenience. We are building an ecosystem of intelligent document tools powered by AI, supporting 10 languages, and serving users in over 150 countries. Every feature we ship is guided by one question: does this make our users' lives easier?
Many of our tools process files entirely in your browser. Your documents never leave your device, giving you maximum privacy and security.
With 8 AI-powered tools — including Chat with PDF, PDF Translator, PDF Study, and Handwriting to PDF — we offer more AI features than any other free PDF platform.
Most tools work instantly without creating an account. Just upload, process, and download. No barriers, no friction.
Our entire interface and tools are available in English, Spanish, French, German, Italian, Japanese, Korean, Chinese, Greek, and Hindi.
Our Chrome extension integrates directly with Gmail, letting you process PDF attachments without leaving your inbox.
Optimized algorithms ensure instant results even with large documents. No waiting, no queues.
Enterprise-grade tools that maintain document integrity, formatting, and quality throughout every conversion.
Fully responsive design works seamlessly on desktop, tablet, and mobile devices.
Security is not an afterthought at PDF-Ninja — it is foundational to everything we build. We use a privacy-first architecture where many operations are performed entirely client-side in your browser, meaning your files never touch our servers.
When server-side processing is required, all file transfers are encrypted with SSL/TLS. Uploaded files are stored in isolated temporary directories and automatically deleted within one hour. We never share, sell, or analyze your documents.
PDF-Ninja is fully GDPR compliant. We collect minimal data, provide clear privacy policies, and give you full control over your information. For complete details on our security practices, visit our Trust & Security page.
PDF-Ninja is part of a growing ecosystem of free, professional-grade web tools:
Our flagship product — 25+ professional PDF tools for editing, converting, signing, compressing, and more.
Professional image editing and conversion tools. Resize, compress, convert, and enhance your images online.
The all-in-one productivity suite combining PDF, image, and document tools in a single platform.
Process PDF attachments directly from Gmail. Merge, split, compress, and convert without leaving your inbox.
We offer a comprehensive suite of 25+ PDF tools designed for modern workflows:
We offer flexible pricing to meet your needs:
See our Pricing page for detailed plan comparison.
Have questions, feedback, or partnership inquiries? We would love to hear from you.
We typically respond within 24 hours on business days.
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