Free PDF Merger Online

Combine multiple PDF files into a single document. Drag and drop to reorder pages before merging.

Merge multiple PDF files into a single document with our free online PDF Merger. Combine contracts, reports, invoices, or any PDF files into one unified document in seconds. Simply drag and drop your PDFs, rearrange them in your desired order using our intuitive interface, and click merge. The tool processes everything in your browser using pdf-lib — your documents are never uploaded to any server. Support for up to 20 files at once, with no file size limits and no watermarks. Perfect for combining related documents, creating comprehensive reports, or organizing scattered PDF pages into a single file.

How to Use PDF Merger

1

Upload PDF Files

Drag and drop 2 or more PDF files into the upload area. You can add up to 20 files at once.

2

Arrange File Order

Reorder your PDF files using the up/down arrows. The files will be merged in the order shown.

3

Merge & Download

Click "Merge PDFs" to combine all files into one document. Download the merged PDF instantly.

Features

Drag & Reorder

Easily rearrange the order of PDF files before merging using intuitive up/down controls.

Up to 20 Files

Merge up to 20 PDF files at once. No restrictions on individual file sizes.

Client-Side Processing

All merging happens in your browser. Files are never uploaded — 100% private and secure.

Instant Results

Fast merging powered by pdf-lib. Even large multi-page documents are combined in seconds.

Benefits of Using PDF Merger

Completely Free

Use PDF Merger without any cost, limits, or hidden fees. No premium plans needed.

No Installation

Works directly in your browser. No software downloads or plugins required.

100% Private

Your files and data are processed locally. Nothing is uploaded to external servers.

Works Everywhere

Compatible with Chrome, Firefox, Safari, Edge on desktop, tablet, and mobile.

No Sign-Up

Start using the tool immediately. No account creation or email verification.

Always Available

Access this tool 24/7 from anywhere in the world, on any device.

Frequently Asked Questions

Yes, our PDF Merger is completely free with no limits on usage, file size, or number of merges. No registration required.
You can merge up to 20 PDF files at once. Need more? Simply merge in batches.
Yes! Use the up/down arrow buttons to arrange your PDFs in exactly the order you want before merging.
No. Our tool combines PDFs without any quality loss. All pages, images, and formatting are preserved exactly.