> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/editran-connect-v3.3/firma/firmadeficheros/detallefichero/contrafirmar.md).

# Contrafirmar

Cuando el usuario participa en calidad de contrafirmante en el *grupo de ficheros* al que pertenece el fichero, encuentra el fichero en estado `Pendiente de firmar por mí` únicamente cuando previamente se hayan realizado sobre el fichero todas las firmas que no son contrafirmas. En este caso, el botón en la vista **Detalle de fichero** muestra **Contrafirmar** en lugar de **Firmar**. En este caso no se visualiza el fichero.

Al pulsar el botón, el contrafirmante firma en un solo paso, a la vez, las firmas de tantos firmantes como deba contrafirmar.

A nivel de usabilidad (selección de certificado, introducción de la contraseña, etc.), la operativa de contrafirma es igual que la de la firma.


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