Private PDF tool
Merge PDF
Combine PDF files in your preferred order without sending them to a server.
Processed on your device — your PDFs are never uploaded.
How to merge PDF files
- Choose two or more PDF files.
- Use Move up and Move down to set their order.
- Select Merge PDFs and download the result.
Limitations
Large files may exceed browser memory. Encrypted or corrupt PDFs are rejected. Merging may invalidate digital signatures and may not preserve every advanced document feature.
Frequently asked questions
Are my PDFs uploaded?
No. The PDFs are read and merged in your browser on your device.
Can I change the file order?
Yes. Use the accessible Move up and Move down buttons before merging.
Can I merge an encrypted PDF?
No. Password-protected and encrypted PDFs are rejected.