Merge PDF
Combine PDFs into one file — free, and entirely in your browser. Your documents never leave your device.
Drop PDFs here, or click to choose
Add two or more files · they’re processed on your device, never uploaded
100% private
Runs on your device — nothing is uploaded.
No limits
No sign-up, watermark, or file cap.
Open-source engine
Built on the pdf-lib library.
How to merge pdf
- 1. Drop your PDFs into the box above, or click to choose them.
- 2. Reorder them with the arrows until the sequence is right.
- 3. Click Merge, then download your combined merged.pdf.
Everything happens locally in your browser, so the tool is safe for confidential documents and keeps working even if your connection drops after the page loads.