With the APP you can digitally sign PDF documents with legal validity wherever you are and anytime you want. Sign documents received directly by WhatsApp, Facebook Messanger, emails and more. Share signed documents instantly with your contacts. The DigitalSign Brasil app allows you to transfer and use your multiplatform A1 digital certificates from your computer to your smartphone or tablet in an easy way. If you don't already have a DigitalSign digital certificate, don't waste time! Install now and purchase yours through the APP itself.