Merge PDF
100% in your browser — nothing is uploadedAdd two or more PDFs, arrange them in the order you want, and download a single combined file. The merge happens entirely on your device using your browser's own processing — which is exactly what you want when the documents are contracts, medical records, or anything else you'd rather not hand to a stranger's server.
Because nothing is uploaded, there's no file-size cap, no task-per-hour meter, and no premium tier — limitations on most merge tools exist because server processing costs the operator money. Here it costs nothing, so nothing is rationed.
How to use the merge pdf
- Drop your PDF files onto the tool (or click to browse).
- Reorder them with the arrows — the list order is the final page order.
- Click merge and the combined PDF downloads.
Frequently asked questions
Are my PDFs uploaded to a server?
No. Files are read and combined in your browser's memory using the pdf-lib library. You can load this page, disconnect from the internet, and merging still works.
Is there a limit on file count or size?
No fixed limit — practical bounds are your device's memory. Dozens of typical documents merge without issue.
Will quality or formatting change?
No. Pages are copied into the new file as-is — no re-rendering, recompression, or watermarking happens.
Can I merge password-protected PDFs?
Not directly — encrypted files can't be read without the password. Remove the protection first, then merge.