Split PDF
Extract specific pages, split by ranges, or batch split into multiple files. Supports chapter detection.
100% Free & Secure
Next-Gen PDF Tools
Right in Your Browser
Split, merge, convert, and edit PDFs with precision. No uploads, no registration, no limits. Your documents never leave your device.
18+
PDF Tools
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Uploads Required
100%
Free Forever
Features
Everything You Need to Master Your PDFs
Powerful tools designed to handle any PDF task with speed and precision.
Merge PDFs
Combine multiple PDF files into one. Drag and drop to reorder pages before merging.
PDF to Images
Convert PDF pages to high-quality JPG or PNG images with customizable quality settings.
Annotate
Add text, highlights, freehand pen, arrows and shapes. Undo with Ctrl+Z — saved as crisp PDF vectors.
Extract Text
Pull all text content from your PDF. Copy to clipboard or download as a .txt file.
Rotate Pages
Rotate individual pages or all pages at once. Perfect for fixing scanned documents.
Reorder Pages
Drag and drop pages to rearrange their order. Visual thumbnails make it easy.
Add Background
Apply colored backgrounds with adjustable opacity to selected pages.
Images to PDF
Convert JPG, PNG, GIF, or WEBP images into a single PDF. Supports A4, Letter, or fit-to-image sizing.
Scannify
Make a clean digital PDF look like a real scan — paper tint, skew, and grain — with a live preview.
PDF to Markdown
Convert a PDF's text into clean Markdown with automatic heading and list detection.
Compress PDF
Shrink file size by re-encoding pages, with a live before/after size estimate.
OCR
Recognize text in scanned or image-only PDFs. Export as text or a searchable PDF. Many languages.
Password Protect
Encrypt a PDF with a password — entirely in your browser, nothing ever uploaded.
Unlock
Remove the password from a protected PDF (with the correct password) for an open copy.
Delete Pages
Select unwanted pages from a thumbnail grid and remove them in one click.
Watermark
Stamp a diagonal text watermark across every page with adjustable color and opacity.
Page Numbers
Add page numbers with your choice of position, format and starting number.
Why Choose Us
Built for Privacy & Speed
PDF Ninja Pro is different. Here's why.
100% Private
Your files never leave your device. All processing happens locally in your browser. No servers, no uploads, no data collection.
Lightning Fast
No waiting for uploads or downloads. Operations complete instantly because everything runs on your machine.
Completely Free
No paywalls, no premium tiers, no trial limits. Every feature is free for everyone, forever.
No Registration
Jump straight in. No accounts to create, no emails to verify. Just open and start editing.
How It Works
Three Simple Steps to PDF Mastery
1
Choose Your Tool
Select from 18+ powerful PDF tools in the sidebar. Each tool is optimized for a specific task.
2
Upload Your PDF
Drag and drop your file or click to browse. Your PDF loads instantly — no uploading to servers.
3
Download Results
Make your changes and download the result. It's that fast. No waiting, no limits.
Use Cases
Perfect for Everyone
Students
Extract chapters, merge lecture notes, convert slides to images for studying.
Professionals
Merge reports, split contracts, add annotations for review, reorder proposals.
Home Users
Organize scanned documents, fix rotated pages, create PDFs from photos.
Developers
Open-source codebase on GitHub. Learn, contribute, or fork for your own projects.
FAQ
Frequently Asked Questions
Is PDF Ninja Pro really free?
Yes, PDF Ninja Pro is completely free to use. There are no hidden fees, no premium tiers, and no registration required. All features are available to everyone.
Is it safe to use PDF Ninja Pro?
Absolutely! PDF Ninja Pro processes all files directly in your browser. Your PDFs are never uploaded to any server. Your documents stay completely private and secure on your device.
What PDF operations can I perform?
You can split, merge, convert to images, extract text, rotate, reorder, and annotate PDFs (text, highlights, freehand drawing and shapes). You can also add colored backgrounds, convert images to PDF, make a PDF look scanned, convert a PDF to Markdown, compress it, run OCR to get text or a searchable PDF, and password-protect (encrypt) it.
Do I need to install any software?
No installation required. PDF Ninja Pro runs entirely in your web browser. It works on Windows, Mac, Linux, and even mobile devices.
Are there any file size limits?
Since processing happens in your browser, the only limit is your device's memory. Most users can easily handle PDFs of 50-100MB or more.
Can I use PDF Ninja Pro on mobile?
Yes! The interface is fully responsive and works on smartphones and tablets. Access it from any modern mobile browser.
Ready to Master Your PDFs?
Join thousands of users who trust PDF Ninja Pro for their document needs.
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