Combine PDF files for free

Merge two or more PDFs into a single document right in your browser. There is no sign-up, no watermark, and no page-count paywall, and your files are processed on your device instead of being uploaded to a server.

No sign-up required • No watermark • Files never leave your device

How it works

  1. 1

    Open the free editor. No account is needed.

  2. 2

    Drag and drop your first PDF, or click Browse Files.

  3. 3

    Use the Combine PDFs tool to add the other files.

  4. 4

    Arrange the pages in the order you want.

  5. 5

    Download your combined PDF.

Common questions

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

There is no fixed limit on file count. Very large jobs (over 100MB total) may process slowly in the browser; the free desktop version handles large files more efficiently.

Will the combined PDF have a watermark?

No. Nanodoc never adds a watermark or any branding to your documents.

Are my files uploaded to a server?

No. Combining happens locally in your browser or on your device. Your files never leave your computer.