Merge PDF
Combine two or more PDF files into a single document, entirely inside your browser.
- 100% free
- No upload — runs in your browser
- No sign-up needed
Merging PDFs online usually means uploading sensitive files to someone else's server and hoping they get deleted afterward. This tool skips that step: it opens your PDFs locally, stitches the pages together in the order you choose, and hands back one combined file. Nothing is transmitted anywhere, so it's fine to merge contracts, statements or ID scans without a second thought.
How to Merge PDF
- Add two or more PDF files using the drop zone or the file picker.
- Reorder or remove files from the list until the sequence is right.
- Click "Merge PDF files" — the combined PDF downloads straight to your device.
Frequently asked questions
Is it safe to merge confidential PDFs with this tool?
Yes. The merge happens using your browser's own processing power — the files never leave your device or touch a server, so there's no upload, no third-party storage, and nothing to clean up afterward.
Does merging preserve the original page order and formatting?
Yes. Pages are copied exactly as they appear in the source files, in the order you arrange them, with no re-rendering that could alter layout, fonts or image quality.
Is there a limit to how many PDFs I can merge?
There's no hard file-count limit, but very large batches depend on your device's available memory since everything runs locally rather than on a server.
Can I merge password-protected PDFs?
PDFs that only restrict printing or editing — a common default on invoices and official documents — merge without issue. Files that require a password just to open need that password removed first.