This is really bad news for me... There practically no way I can fix the PDF
creator.
I was hoping I could fix this issue on the singning part, even if it's not
iText's fault.
Best regards,
Stefan.
On Wed, Jun 29, 2011 at 3:57 PM, Leonard Rosenthol <[email protected]>wrote:
>
> Good catch! Then the original PDF creator is broken and needs to be fixed!
>
>
> On 6/29/11 2:52 PM, "mkl" <[email protected]> wrote:
>
> >
> >Leonard Rosenthol-3 wrote:
> >>
> >> Search the code and see where XAP appears.
> >>
> >
> >I'm afraid it might be the other way around... Stefan's original PDF
> >consistently uses the xap namespace prefix and iText inserts an element
> >using the xmp namespace prefix without defining it.
> >
> >PdfStamperImp.close() sets the ModifyDate like this:
> >
> >
> >
> >> XmpReader xmpr;
> >> ...
> >> xmpr.add("rdf:Description", "http://ns.adobe.com/xap/1.0/";,
> >> "xmp:ModifyDate", date.getW3CDate());
> >>
> >
> >Looking at XmpReader.add() I see:
> >
> >
> >
> >> public boolean add(String parent, String namespaceURI, String localName,
> >> String value) {
> >> NodeList nodes = domDocument.getElementsByTagName(parent);
> >> if (nodes.getLength() == 0)
> >> return false;
> >> Node pNode;
> >> Node node;
> >> for (int i = 0; i < nodes.getLength(); i++) {
> >> pNode = nodes.item(i);
> >> NamedNodeMap attrs = pNode.getAttributes();
> >> for (int j = 0; j < attrs.getLength(); j++) {
> >> node = attrs.item(j);
> >> if (namespaceURI.equals(node.getNodeValue())) {
> >> node = domDocument.createElement(localName);
> >> node.appendChild(domDocument.createTextNode(value));
> >> pNode.appendChild(node);
> >> return true;
> >> }
> >> }
> >> }
> >> return false;
> >> }
> >>
> >
> >Thus, xmpr.add("rdf:Description", "http://ns.adobe.com/xap/1.0/";,
> >"xmp:ModifyDate", date.getW3CDate()); actually searches for a
> >"rdf:Description" node which has, as an attribute, a namespace definition
> >for "http://ns.adobe.com/xap/1.0/";, and then it inserts a
> "xmp:ModifyDate"
> >element ignoring the prefix actually defined for that namespace.
> >
> >Unless the prefixes to use are fixed in the context of XMP and are
> >required
> >to be defined in the "rdf:Description" node, this smells very buggy.
> >
> >Regards, Michael.
> >
> >--
> >View this message in context:
> >http://itext-general.2136553.n4.nabble.com/Sign-a-PDF-A-tp3627882p3632752
> .
> >html
> >Sent from the iText - General mailing list archive at Nabble.com.
> >
> >--------------------------------------------------------------------------
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>
>
> ------------------------------------------------------------------------------
> All of the data generated in your IT infrastructure is seriously valuable.
> Why? It contains a definitive record of application performance, security
> threats, fraudulent activity, and more. Splunk takes this data and makes
> sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-d2d-c2
> _______________________________________________
> iText-questions mailing list
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>
> iText(R) is a registered trademark of 1T3XT BVBA.
> Many questions posted to this list can (and will) be answered with a
> reference to the iText book: http://www.itextpdf.com/book/
> Please check the keywords list before you ask for examples:
> http://itextpdf.com/themes/keywords.php
>
------------------------------------------------------------------------------
All of the data generated in your IT infrastructure is seriously valuable.
Why? It contains a definitive record of application performance, security
threats, fraudulent activity, and more. Splunk takes this data and makes
sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-d2d-c2
_______________________________________________
iText-questions mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
