{"id":30471,"date":"2021-03-15T14:39:17","date_gmt":"2021-03-15T13:39:17","guid":{"rendered":"https:\/\/www.viafirma.com\/?post_type=faq&p=30471"},"modified":"2026-04-28T09:28:53","modified_gmt":"2026-04-28T07:28:53","slug":"pades-firma-electronica-avanzada-en-formato-pdf","status":"publish","type":"faq","link":"https:\/\/www.viafirma.com\/es\/faqs\/pades-firma-electronica-avanzada-en-formato-pdf\/","title":{"rendered":"PAdES firma electr\u00f3nica PDF con validez"},"content":{"rendered":"

La firma electr\u00f3nica en PDF es fundamental en el entorno digital actual para asegurar la integridad y autenticidad de los documentos. El est\u00e1ndar PAdES (PDF Advanced Electronic Signatures)<\/strong> es el encargado de adaptar el formato PDF (ISO 32000-1) a los requisitos del Reglamento europeo eIDAS<\/strong><\/a>, permitiendo que las firmas no solo sean legales, sino t\u00e9cnicamente robustas.<\/p>\n

\u00bfPor qu\u00e9 elegir PAdES?<\/h3>\n

A diferencia de otros formatos, PAdES ofrece ventajas \u00fanicas:<\/p>\n

    \n
  • Autosuficiencia:<\/strong> Los datos de la firma se incrustan en el propio PDF. El documento se puede mover o copiar sin perder su validez.<\/li>\n
  • Validaci\u00f3n a Largo Plazo (LTV):<\/strong> Gracias al perfil LTV, un documento sigue siendo v\u00e1lido a\u00f1os despu\u00e9s de que el certificado del firmante haya caducado o los algoritmos criptogr\u00e1ficos hayan quedado obsoletos.<\/li>\n
  • Compatibilidad Universal:<\/strong> No requiere software extra\u00f1o; cualquier lector de PDF est\u00e1ndar (como Adobe Reader) puede verificar la firma.<\/li>\n<\/ul>\n

    Diferencias con CAdES y XAdES<\/h3>\n

    Mientras que CAdES<\/strong> se usa para archivos binarios y XAdES<\/strong> para estructuras XML (ideales para comunicaci\u00f3n entre m\u00e1quinas), PAdES<\/strong> est\u00e1 dise\u00f1ado para ser le\u00eddo por personas, permitiendo incluso una representaci\u00f3n visual de la firma sobre el papel digital.<\/p>\n

    Evoluci\u00f3n de los Perfiles PAdES (ETSI EN 319 142)<\/h3>\n

    Para garantizar la seguridad, PAdES se organiza en niveles de cumplimiento:<\/p>\n

      \n
    1. PAdES-B-B (Basic):<\/strong> El nivel b\u00e1sico que garantiza la integridad.<\/li>\n
    2. PAdES-B-T (Timestamp):<\/strong> Incluye un sello de tiempo de una autoridad externa, certificando el momento exacto de la firma.<\/li>\n
    3. PAdES-B-LT (Long Term):<\/strong> Incorpora toda la informaci\u00f3n necesaria para la validaci\u00f3n (OCSP o listas de revocaci\u00f3n), permitiendo que la firma sea v\u00e1lida aunque el certificado caduque.<\/li>\n
    4. PAdES-B-LTA (Archive):<\/strong> El nivel superior, que aplica sellos de tiempo sucesivos para proteger el documento contra futuros avances en computaci\u00f3n que puedan romper la criptograf\u00eda actual.<\/li>\n<\/ol>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"plain-container","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[72],"class_list":["post-30471","faq","type-faq","status-publish","hentry","category-developers"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/faq\/30471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/faq"}],"about":[{"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/types\/faq"}],"version-history":[{"count":6,"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/faq\/30471\/revisions"}],"predecessor-version":[{"id":100805,"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/faq\/30471\/revisions\/100805"}],"wp:attachment":[{"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/media?parent=30471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viafirma.com\/es\/wp-json\/wp\/v2\/categories?post=30471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}