Merge PDF files online for free

Combine multiple PDF files into one document. Drag to reorder. 100% browser-side processing – no file upload to any server.

Click or Drag & Drop PDF files

PDF only, max 20 files, up to 50 MB each

How to Merge PDF Files

1
1

Drag and drop or click to select the PDF files you want to merge.

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2

Reorder files by dragging the cards.

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3

Click 'Merge PDF' to start processing.

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4

Download the merged PDF file.

Key Features

Drag & drop to reorder
Browser-side processing
100% private – no upload
Fast & free

Related Tools

01

What is a PDF Merger?

A PDF merger is a tool that combines multiple individual PDF files into a single document. Our Merge PDF tool works entirely in the browser – no files are uploaded to any server. You can reorder files before merging and download the result instantly.
02

Why Merge PDF Files?

Merging PDFs helps you manage documents more efficiently: instead of sending multiple separate files, you only need to send one. Perfect for contracts, reports, portfolios, and academic documents. Our tool processes everything locally, ensuring complete privacy.

Frequently Asked Questions

Yes, our PDF merger is completely free. No usage limits, no account required.
Completely safe. Your PDF files are processed directly in your browser. We cannot see or store the contents of your files.
No. All processing happens locally in your browser using the pdf-lib library. Files never leave your device.