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Guides
Digital Signature Validation (Android)

Digital Signature Validation in Xamarin

You can validate signatures in signed documents by verifying signers using the .

Adding a trusted certificate

Validating digital signatures

To verify your digital signatures, you can show the DigitalSignatureListDialog using the code below:

fun showDigitalSignatureList(toolManager: ToolManager, pdfViewCtrl: PDFViewCtrl, fragmentManager: FragmentManager) {
    var dialog = DigitalSignatureListDialog.NewInstance();
    dialog.SetStyle((int)DialogFragmentStyle.NoTitle, toolManager.GetTheme());
    dialog.SetPDFViewCtrl(pdfViewCtrl);
    dialog.Show(fragmentManager, "digital_sig_list_dialog");
}

In this list, you will be able to view digital signature information such as the signer's name, time of signing, signature validity, etc. Additionally you can tap on Signature Properties to view additional signature details.

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