How to Merge PDF – Step by Step
Learn how to merge PDF files online for free. Step-by-step instructions, tips, and best practices — no software needed.
The Merge PDF tool lets you combine multiple PDF files into one seamless document. Whether you're merging invoices, combining report chapters, or joining scanned contracts, this tool handles it all — right in your browser, with no uploads to any server.
Step-by-Step Guide
Open the Merge PDF page in your browser.
Drag your PDF files into the upload area, or click to browse and select them. You can add as many files as you need.
Reorder the files by dragging them into your preferred order — the first file becomes page one of the final document.
Click the merge button. Processing happens locally in your browser and completes in seconds.
Download your merged PDF file. It's ready to share, print, or archive.
Tips for Best Results
- You can merge files of different sizes and page counts — there's no limit.
- If your PDFs have inconsistent page sizes, use the Fix Page Size tool before merging for a uniform result.
- All processing happens locally — your files never leave your device.
Ready to try it? → Merge PDF