[jira] [Commented] (PDFBOX-4511) Add name to signature field

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-4511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815566#comment-16815566 ] 

Tilman Hausherr commented on PDFBOX-4511:
-----------------------------------------

I looked at a few signed files and most have "signature1", "signature2" or "Unterschrift" as field name but never a person name.

The risk of your suggestion is that the user doesn't check whether the field already exists.

The user could do this by calling {{getSignatureFields()}} *after* the {{addSignature()}} call and use the last item (works only with new signature fields, not if one was signing an existing field). Another way would be this code:
{code:java}
for (PDSignatureField signatureField : doc.getSignatureFields())
{
    if (signatureField.getSignature().getCOSObject().equals(signature.getCOSObject()))
    {
        signatureField.setPartialName("Best signature field ever");
    }
}
{code}


> Add name to signature field
> ---------------------------
>
>                 Key: PDFBOX-4511
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4511
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Signing
>    Affects Versions: 2.0.14
>            Reporter: Luiz
>            Priority: Major
>              Labels: patch
>         Attachments: field_name.jpg, signatureFieldName.patch
>
>
> I've implemented an adjust to add signature field name on method
> {code:java}
> addSignature(PDSignature sigObject, SignatureInterface signatureInterface, SignatureOptions options){code}
> Only add if PDSignature contains a name.
> Adobe Reader shows the name as you can see in field_name.jpg.



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