Merge PDF — Combine Multiple PDFs into One

Upload multiple PDF files, reorder them, and merge into a single PDF — all in your browser. Fast, private and free.

How Merge PDF Works

  1. Add files — select multiple PDF files from your device.
  2. Reorder — move files up/down to set the merge order.
  3. Merge — click Merge & Download to combine and save the resulting PDF.

Why use this Merge PDF tool?

  • Private: Merging is performed client-side by default — your files stay on your device.
  • Simple: Reorder files and merge with one click.
  • Free: No signup or subscription required.

Frequently Asked Questions

Will my PDFs be uploaded?

No. By default, merging happens in your browser and files are not uploaded to our servers.

Can I merge many files or very large PDFs?

Yes, but very large files may cause high memory usage in the browser. For heavy use, a server-side merge is recommended.

Is the merged PDF compatible with all PDF readers?

Yes — the merged file is a standard PDF and should open in Adobe Reader, browser PDF viewers, mobile apps, and other PDF tools.