[SPAM] Re: Signing PDF

mkl <[email protected]>
Newsgroups gmane.comp.java.lib.itext.general
Message-ID <[email protected]>
Valentin,


Valentin Ivanov wrote
> java.lang.AbstractMethodError:
> javax.xml.parsers.DocumentBuilderFactory.setFeature(Ljava/lang/String;Z)V
> 
>        at
> com.itextpdf.xmp.impl.XMPMetaParser.createDocumentBuilderFactory(XMPMetaParser.java:423)

That actually looks like non-matching XML library APIs and implementations
on your classpath: You have a DocumentBuilderFactory instance without an
implementation of the method setFeature.

This document builder setFeature method is called when an existing XMP
metadata stream is parsed. Probably the PDFs which you can sign don't have
such a stream.

> I have attached ok.pdf (I sign it successfully) and nok.pdf with the
> exception on signing

Actually you attached two nok.pdf files.

Regards,  Michael



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