Sign X PDF
Merge PDF files in your browser
Use Sign X PDF to merge multiple PDFs into a single document in your browser. Files are processed locally on your device rather than uploaded to Sign X PDF servers. No account is required. Download the merged PDF when you finish.
Your PDF is processed locally in your browser and is not uploaded to Sign X PDF servers.
Use this tool in your browser
Enable JavaScript to edit PDFs locally in your browser. No upload is required once the page assets have loaded.
What this tool does
Load one or more PDFs (and supported images), arrange pages, and export a single combined PDF.
How to use it
- Open the merge tool workspace below.
- Add the PDF files you want to combine.
- Reorder pages if needed.
- Save the merged PDF to your device.
How local processing works
Merging uses client-side PDF libraries in the browser after assets load. The selected files are not sent to Sign X PDF servers for merge processing.
Limitations
- Browser memory limits apply for very large or numerous files.
- Some encrypted PDFs require a password before they can be merged.
FAQ
Can I merge more than two PDFs?
Yes. Add multiple files in the tools workspace, then export one combined PDF.
Are my files uploaded to merge them?
No. Merge processing is designed to stay in your browser.