pdf tool
Merge PDF
Combine multiple PDF files into one document in your browser. Files and text are handled in your browser whenever this tool supports it.
Files are processed in your browser - they are not uploaded.
Choose two or more PDFs
How it works
Give the tool one clear input. ArcaThread keeps the controls close to the result and explains what happens to your data.
Privacy by default
No account is required. When processing can happen locally, the file does not need to leave your device.