100% Private & Browser-Processed

PDF Merger

Merge two or more PDF files into a single organized document. Reorder files with drag-and-drop ease, preserve bookmarks, and download securely without uploading sensitive files.

How to use PDF Merger

1Select or drag and drop multiple PDF documents into the upload box.
2Reorder the files into your desired page order using the up/down controls.
3Click "Merge PDFs" to assemble the combined document.
4Download your consolidated PDF file immediately.

Key Features & Capabilities

Combine multiple PDF documents

Reorder files before merging

Client-side processing using WebAssembly and pdf-lib

In-browser processing with zero server uploads

Frequently Asked Questions

Is it safe to merge confidential contracts or bank statements?

Yes. Because this tool runs entirely on your device with client-side JavaScript, your files are not transmitted across the internet.

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

There are no artificial limits. You can combine as many files as your device memory comfortably supports.

Privacy & Security Commitment

Your PDF documents are never transmitted to our servers. All merging operations occur inside your browser using client-side WebAssembly.

Related In-Depth Guides

How to Merge, Split, and Organize PDF Documents in Your Browser

Learn how PDF document page trees and object streams work, and how to combine multiple PDFs or extract pages client-side with complete privacy.

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