Hola,
Quieres firmar el pdf (la firma se puede atachar al pdf, intermanente)?
o
Crear la firma i meterla en un zip junto al pdf?
En el primer caso la firma se puede comprobar/ver en cualquier visor de PDFs, en el segundo tendrias que desarrollar algo tambien para comprobar la firma (tambien deberias mandar el certificado o clave publica para poder verificar)
Saludos
Raul
Java expert, with a good knowledge of its ecosystems
Familiarity with concepts of MVC, JDBC, and RESTful/SOAP webservices
Experience with popular web application frameworks, such as Spring (almost all modules), AngularJS, JQuery, Struts, JSF...
Experience with several SQL (SAP HANA, Oracle, MySQL, PosgreSQL...) and nonSQL (mongoDb)
Expert in different Java Persistance APIs (Hibernate, Toplink)
Experience with database refaactoring tools (Liquibase)
Expert in index engines/technologies and log analysis tools (Elasticsearch, Solr, ELK, Lucene)
High understanding of JVM, its limitations, weaknesses, and workarounds
Implementing automated testing platforms and unit tests
Proficient understanding of code versioning tools, such as Git, Subversion, CVS
Expert with build tools such as Maven, Ant
Experience with continuous integration
IT Security expert and secure development expert.
Public Key Infrastructure expert
Apache NIFI expert