PDF Merger
Combine multiple PDF files into one, in the order you choose.
How to use PDF Merger
- Add two or more PDF files.
- Reorder them using the up/down buttons — they'll be merged in this order.
- Click Merge, then download the combined PDF.
About this tool
The PDF Merger combines two or more PDF files into a single document, preserving every page. Reorder files before merging, then download the combined result. Merging happens entirely in your browser — your files are never uploaded to a server, which also means there's no file size limit imposed by an upload, and your documents stay private even if they contain sensitive content.
Frequently Asked Questions
Is there a limit on file size or number of files?
No hard limit is enforced by this tool, since nothing is uploaded — merging happens using your browser's own memory. Very large files or a large number of files may be slower or use more memory depending on your device.
Will this work on password-protected PDFs?
No — encrypted or password-protected PDFs can't be read by the in-browser PDF library this tool uses. Remove the password first (e.g. with your PDF viewer's export option) if you need to merge a protected file.
Are my PDFs uploaded anywhere?
No — merging happens entirely in your browser using a JavaScript PDF library. Your files never leave your device.