Merge PDF
Combine multiple PDF files into one document, in the order you choose. Free, private, and processed in your browser.
✓ No signup✓ Processed on your device
Use the interactive tool to choose your files and create a download. JavaScript is required for local processing. No account needed.
How to merge pdf
- Choose two or more PDF files.
- Use the file arrows to set the order. Pages from each file stay together.
- Merge and preview your combined PDF before downloading.
Bookmarks, interactive forms and existing digital signatures may not survive page copying.
Before you get started
Can I change file order?
Yes. Move each file up or down before merging. To rearrange individual pages, use Reorder pages after merging.
Are originals changed?
No. WaterPDF creates a separate download and never overwrites your selected originals.
Are my documents uploaded?
No. Selected file contents are processed in your browser. Normal page requests still reach the hosting provider. Use a trusted device and keep your originals.