How to Merge multiple PDF files into one

Merge multiple PDF files into one. Drag to reorder pages before combining. Free, private, entirely browser-based.

4 min read Merge PDF Free, no signup required

Quick start

Merge PDF — Merge multiple PDF files into one.

Get started in under two minutes:

  1. Upload your PDF files
  2. Arrange the page order
  3. Click Merge
  4. Download the merged PDF
Open Merge PDF

Step-by-step instructions

Follow these steps to get the best results from Merge PDF:

1

Upload your PDF files

Click "Add PDFs" or drag and drop multiple PDF files into the upload area. All files are processed in your browser — nothing is uploaded to a server.

Tip: You can add as many PDFs as needed. Each file appears as a thumbnail in the merge queue.
2

Arrange the page order

Drag the PDF thumbnails to change the order in which they will be merged. The final document follows the order shown on screen.

Tip: Click a thumbnail to preview its pages before merging.
3

Click Merge

Click the "Merge PDFs" button. The tool combines all uploaded files into a single PDF in the order shown.

Tip: The process takes a few seconds depending on the total file size and your device speed.
4

Download the merged PDF

Click "Download" to save the combined PDF file. The download filename defaults to "merged.pdf" — rename it as needed.

Tip: Check the merged file immediately after downloading to confirm all pages appear in the right order.
Open Merge PDF

Frequently asked questions

Are my PDF files uploaded to a server?

No. Merge PDF processes everything locally in your browser using JavaScript. Your PDF files never leave your device, making it safe for confidential or sensitive content.

Is Merge PDF free to use?

Yes — Merge PDF is completely free with no account or signup required. All core features are available immediately.

What is the maximum file size supported?

PDF files up to 100MB are supported. Very large files may take longer to process depending on your device.

Does this work on Mac, Windows, and Linux?

Yes — Merge PDF works in any modern web browser regardless of operating system. No installation or plugins required.

Does Merge PDF work on mobile devices?

Yes — Merge PDF works on smartphones and tablets through any modern mobile browser. The interface adapts to smaller screens automatically.

Ready to merge multiple PDF files into one?

Merge PDF is free to use. No account or signup required.

Open Merge PDF