Elias,

Elias_iText wrote
> can you give more details about this ?  is there some code example ?

If i recall correctly, I created a signature field with multiple widgets
with some one-shot code and signed that field using adobe acrobat. I don't
think I still have that code anywhere anymore.

If you actually want iText to create and verify such signatures, some
changes to its core classes (or some reflection magic) is required.

Please keep in mind, though, this note from Bruno's white paper: Is it
possible to have one signature correspond with more than one widget? I’m
sorry, but that’s not a good question. See the spec about digital signature
appearances by Adobe: “The location of a signature within a document can
have a bearing on its legal meaning. For this reason, signatures never refer
to more than one annotation. If more than one location is associated with a
signature the meaning may become ambiguous.

Thus, it may well happen that adobe software - when displaying a
multi-appearance signature - will eventually warn or even reject it.

Regards, Michael



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