Local processing

Free Merge PDF Tool

Combine multiple PDFs into one file without server upload.

No UploadLocal tools keep file contents in your browser.
No Sign-upUse supported tools without registration or a workspace.
PrivateWe avoid accounts and do not sell file contents.
FastMost tools run locally and avoid upload queues.
No LoginDownloads are free and never locked behind payment.

Select files for local browser processing.

Files are read by this browser tab. KeepLocal does not upload file contents or file names for this tool.

Up to 10 file(s), 30 MB each.

Choose files to process locally.

How to use Merge PDF

  1. Choose PDF files.
  2. Review the order.
  3. Merge locally and download the combined PDF.

Before you start

Works in modern browsers

Use current Chrome, Edge, Safari, or Firefox. Mobile browsers work for smaller files, but large files may hit device memory limits.

No sign-up or login required

The result download is available immediately after processing. Optional tips never unlock features, downloads, or higher limits.

Keep the tab open

Local processing uses this browser tab. Keep it open until the result file is ready.

FAQ

Do encrypted PDFs work?

Encrypted or damaged PDFs may fail. The tool shows a clear error when that happens.

Is KeepLocal free?

Yes. KeepLocal tools are free to use. No upload for local tools, no sign-up, no login, no locked downloads, and voluntary tips only.

Do I need an account?

No. You can use supported tools without registration, passwords, login, or a workspace.

Are files uploaded?

Tools marked Local processing run in your browser. KeepLocal does not upload file contents or file names for these tools.

Do tips unlock features?

No. Optional tips help cover hosting, maintenance, and translation work, but they never unlock downloads, features, or higher limits.

Free Merge PDF Tool - Combine PDFs Privately