Merge PDF

Merge multiple PDFs into one file in your browser. Your files never leave your device. No upload, no account, 100% private and free.

No uploads. No account. Free to use.

Add two or more PDFs in order, then download one file.

Drop PDFs to merge

Nothing is uploaded. Processing stays on this device.

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Files never leave your device
Runs entirely in your browser
No signup required
Free

What is Merge PDF?

Merge PDF is a free, private tool that combines multiple PDF files into a single document entirely in your browser. Select the files, rearrange the order if needed, and download the merged result. Processing happens locally on your device so your documents never leave your computer and are never uploaded to any server.

Key features

100% client-side – files never leave your device
Drag-and-drop reordering
No file size limits beyond your browser’s memory
No account, no watermark, no upload
Works offline after the page loads
Instant results with pdf-lib in the browser

How to use it

Open the Merge PDF tool.
Add two or more PDF files by drag-and-drop or file picker.
Reorder pages or files by dragging if desired.
Click Merge.
Download the combined PDF. Everything runs in your browser.

When to use it

Use Merge PDF when you need to combine invoices, contracts, reports, or scanned pages into one clean file for emailing, uploading to portals, or printing — without sending sensitive documents to a third-party server.

In this family

PDF tools — related tools in the same cluster.