Is Merge PDF free to use?

Yes. Every core tool, including Merge PDF, is free to use with generous limits. Upgrade only when you need higher volume, larger files, or team features.

Are my files private?

Your documents are processed entirely in your browser. Files never leave your device and are never uploaded to a server, so your data stays private by default.

Which browsers are supported?

Any modern browser — Chrome, Edge, Safari, Firefox, and Arc — on desktop, tablet, or mobile.

Is there a limit on how many PDFs I can merge?

There's no fixed cap — add as many files as your device handles comfortably. Because merging runs locally, very large jobs depend on your browser and available memory rather than any upload limit.

Organize

Merge PDF

Drag, drop, and reorder multiple PDF files, then merge them into a single polished document.

100% free
Private — in your browser
No sign-up

Merge PDF lets you combine PDF files — reports, scans, invoices, or chapters — into one polished document in seconds. Drag to reorder the pages before you join the files, and the whole merge runs locally in your browser, so nothing is ever uploaded. Need the opposite? Split PDF pulls pages back out, while Organize PDF lets you rearrange, rotate, and delete pages on a visual canvas.

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How to merge pdf

1
Add two or more PDF files by dropping them in or browsing.
2
Drag the files to set the order you want.
3
Click Merge to combine them into a single PDF.
4
Download your merged document instantly.

Related tools

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Split PDF

Extract pages or ranges

Organize PDF

Reorder & delete pages

Rotate PDF

Fix page orientation

Delete Pages

Remove pages

Compare PDFs

Spot differences

Compress PDF

Shrink file size

Guides & tutorials

Step-by-step help that uses Merge PDF.

All guides