All the PDF tools you need, in one place.
Merge, split, compress, convert, sign and edit PDFs. 100% in-browser — your files never leave your device.
Every PDF tool you need
Free, unlimited and watermark-free.
Merge PDF
Combine multiple PDF files into one organized document in seconds.
Split PDF
Extract specific pages or break a large file into smaller parts.
Compress PDF
Shrink file size for easier sharing while keeping high visual quality.
Rotate PDF
Fix orientation by rotating pages clockwise or counter-clockwise.
Protect PDF
Add strong password protection to keep your sensitive PDFs safe.
PDF to JPG
Convert each PDF page into a high-resolution JPG image.
JPG to PDF
Turn a batch of JPG or PNG images into a single PDF document.
Word to PDF
Convert Word documents into clean, shareable PDFs.
PDF to Word
Convert PDF documents into editable Word (.docx) files in your browser.
Sign PDF
Sign PDF documents online for free — draw or type your signature and place it on any page.
PDF Editor
Edit any PDF online for free — add text, images and drawings to any page, then download instantly.
Private by design
Your files never leave your device. Everything runs locally in your browser.
Lightning fast
Powered by WebAssembly. No waiting in a queue, no slow uploads.
Secure
No accounts, no tracking, no servers storing your documents.
Frequently asked questions
Is NinjaPDF free?+
Yes — all core PDF tools are free with no watermarks and no daily limits.
Are my files uploaded?+
No. All processing runs locally in your browser using WebAssembly.
Do I need an account?+
No account is required to use the free tools.