Merge PDF

Combine multiple PDF files into one — free, fast, no signup

Click to add PDF files

About Merge PDF

Merge PDF is a free online tool that lets you combine multiple PDF files into a single document instantly. No software installation required, no signup, and your files are processed locally in your browser for maximum privacy. Perfect for combining reports, contracts, invoices, and any other PDF documents.

How to use Merge PDF

1Click the upload area and select two or more PDF files from your device.
2Reorder the files by clicking the up and down arrows next to each file.
3Click the Merge PDFs button to combine all files into one.
4Download your merged PDF file instantly.

Frequently Asked Questions

Is Merge PDF free to use?

Yes, completely free with no limits. You can merge as many PDFs as you want without creating an account.

Are my files safe?

Yes. All processing happens directly in your browser — your files are never uploaded to any server.

How many PDF files can I merge at once?

There is no hard limit. You can merge as many PDF files as your browser can handle.

Does merging PDFs reduce quality?

No. The merged PDF retains the full quality of all original files including images, fonts, and formatting.

Tips & Tricks

✓Drag files in the list to reorder them before merging.
✓You can merge scanned PDFs, form PDFs, and regular text PDFs together.
✓For large files, the merge may take a few seconds — be patient.
✓After merging, use our PDF Compress tool to reduce the file size if needed.