About the Merge PDF
The Merge PDF is a free online tool that lets you combine multiple PDF files into one document, in the order you choose. With it you can work with PDF documents online without installing Adobe Acrobat or any desktop software — there's nothing to install and no account to create. Just open the tool, do what you need, and you're done.
It's part of the PDF collection on OmniTools, a growing platform of 131+ free, privacy-first tools built for speed and a great experience on every device.
Also known as: combine, pdf, join, pdf.
Why use the Merge PDF?
- No watermarks on your output
- Handles multi-page and large PDFs
- Keeps your original formatting and quality
- Works on Windows, Mac, Linux, Android and iPhone
When to use it
- Preparing documents for email or printing
- Combining scanned pages or invoices
- Reducing file size to meet upload limits
How to use the Merge PDF
- Open the Merge PDF. Open the Merge PDF on this page — there is nothing to install and no account needed.
- Add your input. Upload your file by clicking the upload area or dragging it in.
- Adjust options. Choose any options you need — the Merge PDF updates instantly.
- Get your result. Click the action button to download or copy your result. It is 100% free.