PDF Tools
Merge PDF Files
Combine multiple PDF files into one document instantly in your browser. No upload, no server, 100% private using pdf-lib.js.
🔒 Runs in your browser — files never leave your device
📂 Upload PDF Files
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Drop PDF files here or click to browse
Any number of files · Files stay on your device
About Merge PDF
Our free PDF merger processes everything in your browser. No file ever leaves your device. Drag and drop your PDFs, arrange them, and merge. Works with any number of files at any size.
Frequently Asked Questions
Are files safe?
100% safe. Merging happens in your browser. Files never leave your device.
How many PDFs?
Unlimited — merge 2 or 200 files with no restrictions.