Merge PDF

Frequently Asked Questions

How many PDFs can I merge at once?

You can merge as many PDFs as you need. There's no hard limit — just make sure your device has enough memory for very large files.

Does the order of pages matter?

Yes. Drag and drop the files to reorder them before merging. The output PDF will follow the order shown in the list.

Is this tool free to use?

Yes, completely free. No account, no subscription, no hidden limits.

Are my files safe? Do you upload them?

Your files never leave your device. All processing runs locally in your browser using JavaScript — nothing is sent to any server.

Does it work on mobile?

Yes, it works on all modern browsers including mobile Safari and Chrome on iOS and Android.