Merge PDF Files Online
Combine two or more PDF files into a single document in your browser. Reorder pages and files with zero upload to any server.
Store full-resolution files with zero compression and Swiss-level encryption.
How to merge PDF files offline in your browser
- Select or drag-and-drop two or more PDF documents into the box above.
- Use the ↑ and ↓ buttons to rearrange files in the exact order you want them merged.
- Click Merge PDFs into One. The merged file is compiled right in your browser memory and downloaded instantly.
Why use client-side PDF merging?
Most online PDF tools upload your sensitive legal contracts, tax returns, and bank statements to remote cloud servers. Our tool uses client-side WebAssembly / JavaScript execution. Your documents never touch external servers or cloud infrastructure.
Frequently asked questions
Is there any page limit or file size limit?
There is no artificial limit. Because processing happens locally on your computer or phone, it easily handles hundreds of pages without queue delays.
Can I merge password-protected PDFs?
If a PDF is encrypted or password-protected, you must unlock it first before merging.
Are my files private?
Yes, absolutely. The merge happens 100% locally in device memory; no data is ever transmitted across the internet.