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. > >-------------------------------------------------------------------------- >---- >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 ------------------------------------------------------------------------------ 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
