Codegrain

Merge PDF — combine PDF files online, free

Combine multiple PDF files into one in your browser. No upload, no registration. Your files never leave your device.

Files to merge

Files never leave your browserVerify in DevTools

Frequently asked questions

Frequently asked questions

Are my PDF files uploaded to a server?

No. Merging happens entirely in your browser; your files never leave your device.

Is there a limit to how many PDFs I can merge?

You can merge multiple PDFs for free. Large batch merging is a Pro feature.

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