How to Merge PDF Files Online for Free
A step-by-step guide to combining multiple PDF documents into one file using our free browser-based Merge PDF tool. No software installation, no sign-up, and your files never leave your device.
Merging PDFs is one of the most common document tasks — combining invoices, reports, scanned pages, or contracts into a single file.
Why merge PDFs in your browser?
Most online PDF tools upload your files to a server. Ours doesn't: the merge happens entirely on your device using WebAssembly, so private documents stay private.
Step-by-step guide
- Open the Merge PDF tool
- Drop in two or more PDF files
- Drag to reorder them
- Click Merge & Download
Tips
- Files merge in the order shown — reorder before merging
- There is no file size limit beyond your device's memory
- Password-protected PDFs must be unlocked first
| Task | Tool |
|---|---|
| Combine files | Merge PDF |
| Extract pages | Split PDF |
| Reduce size | Compress PDF |
That's it — no accounts, no watermarks, no uploads.
Written by Converter Portal Editorial TeamPublished July 8, 2026Last updated July 11, 2026