Free PDF Merger

Combine multiple PDFs into one document.

Add PDF files

Files are merged locally in your browser — nothing is uploaded.

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How to use the PDF Merger

1Add two or more PDF files.
2Reorder them by dragging if needed.
3Click Merge and download the combined PDF.

Features

Unlimited file count
Drag to reorder files
100% local processing
No file size upload limits

Frequently Asked Questions

Are my files uploaded to a server?

No. Merging happens entirely in your browser using WebAssembly — files never leave your device.

Is there a file size limit?

Only your device’s memory limits the total size. There is no artificial upload cap.

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About the PDF Merger

Merge any number of PDF files into a single document — 100% locally in your browser, nothing is uploaded. The PDF Merger runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more PDF tools or browse all free online tools.