How do you sign a PDF without uploading it?

Signing PDFs on Windows is not possible without uploading it. On the other hand, macOS users can use Preview to give their document an eSignature – however, this won’t count as a legally binding signature. It’s sometimes difficult to have your Mac around you all of the time, so MSB Docs offers a professional eSignature solution that can be reached from any device: laptop, mobile phone, or tablet. Applications could improve your experience but you can also try the web-version and see if it suits your needs best.