MULTISIGN

Poseidon Core System

About this app

MULTISIGN is a Poseidon Core System application designed to sign PDF documents from an Android device using digital certificates in .p12 or .pfx format.

The app allows you to upload a digital certificate, select one or more PDF documents, visually position the signature within the document, adjust the signature size, and generate the signed PDF.

Main features:
- Signing PDF documents with a digital certificate.

- Uploading .p12/.pfx certificates.

- Selecting one or more PDF files.

- Visually positioning the signature within the document.

- Adjusting the signature size.

- Displaying the signature with a QR code and signer information.

- Sharing the signed document.

- Saving the signed file to a user-selected location.

- Access protection via a local PIN.

MULTISIGN processes documents locally on the device. PDF files and digital certificates are not stored on external Poseidon Core System servers.

What’s new

Compatibilidad con PDFs firmados por plataformas externas. Corrección de proporciones del sello visual. Cambio de PIN desde configuración. Actualización a Android 16 (API 36).