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Files never leave your browser

Merge PDF Files

Combine multiple PDFs into one document

Drop your PDFs here

or click to browse • select multiple files

Free to start Works offline No upload required

How It Works

1

Select File

Choose a PDF from your device

2

Arrange & Merge

Drag to reorder, then combine

3

Download

Save your finished PDF

Why Choose ModernPDF

100% Private

Your files never leave your device. No uploads, no servers, no tracking.

Lightning Fast

No upload wait times. Processing starts instantly on your device.

No Upload Required

Everything processes locally. Your files never touch our servers.

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Frequently Asked Questions

With ModernPDF, your files never leave your browser. All processing happens locally on your device, making it completely safe for sensitive documents.

Free users can merge up to 2 PDFs per task. Pro users can merge up to 20 files at once with no page limit restrictions.

No. ModernPDF combines PDFs at the binary level without re-encoding. Your text, images, and formatting remain exactly as they were.