MULTISIGN

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.