¿En qué te asistimos? First steps Our guides and tips to get started quickly with Viafirma Create a new signature request Upload and configure a document for signing Quick integration guide User activation - Certificate centralization tool Import certificate - Certificate centralization tool Download desktop application - Certificate centralization tool Articles related Trust servicesTime stamps to certify documentsTime stamps to certify documents... Success storiesTeatro Paraiso: From stage to digital environmentDigitization at Teatro Paraíso: a success story... ResourcesWhat happens if the digital certificate has expired?What happens if your digital certificate has expired?...