public void LoadControl(XmpPacketWrapper xmpMetadata)
{
treeView1.Nodes.Clear();
if (xmpMetadata != null)
{
foreach (XmpPackage package in xmpMetadata.Packages)
{
treeView1.Nodes.Add(package.NamespaceUri, package.NamespaceUri);
TreeNode treePackage = treeView1.Nodes[package.NamespaceUri];
foreach (KeyValuePair <string, XmpValueBase> pair in package)
{
XmpArray xmpArray = pair.Value as XmpArray;
LangAlt langAlt = pair.Value as LangAlt;
XmpComplexType xmpComplex = pair.Value as XmpComplexType;
if (xmpArray != null)
{
treePackage.Nodes.Add(pair.Key, pair.Key);
foreach (string arrayItem in xmpArray.Values)
{
treePackage.Nodes[pair.Key].Nodes.Add(arrayItem, arrayItem);
}
}
else if (langAlt != null)
{
treePackage.Nodes.Add(pair.Key, pair.Key);
treePackage.Nodes[pair.Key].Nodes.Add(pair.Key + langAlt.ToString(), langAlt.ToString());
}
else
{
string xmpProperty = string.Format("{0} - {1}", pair.Key, pair.Value.ToString());
treePackage.Nodes.Add(pair.Key, xmpProperty);
}
}
}
}
treeView1.ExpandAll();
}
// ---------------------------------------------------------------------------
/**
* Creates a PDF document.
*/
public byte[] CreatePdf()
{
using (MemoryStream ms = new MemoryStream()) {
// step 1
using (Document document = new Document()) {
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, ms);
using (MemoryStream msXmp = new MemoryStream()) {
XmpWriter xmp = new XmpWriter(msXmp);
XmpSchema dc = new DublinCoreSchema();
XmpArray subject = new XmpArray(XmpArray.UNORDERED);
subject.Add("Hello World");
subject.Add("XMP & Metadata");
subject.Add("Metadata");
dc.SetProperty(DublinCoreSchema.SUBJECT, subject);
xmp.AddRdfDescription(dc);
PdfSchema pdf = new PdfSchema();
/*
* iTextSharp uses Item property instead of Java setProperty() method
*
* pdf.SetProperty(PdfSchema.KEYWORDS, "Hello World, XMP, Metadata");
* pdf.SetProperty(PdfSchema.VERSION, "1.4");
*/
pdf[PdfSchema.KEYWORDS] = "Hello World, XMP, Metadata";
pdf[PdfSchema.VERSION] = "1.4";
xmp.AddRdfDescription(pdf);
xmp.Close();
writer.XmpMetadata = ms.ToArray();
}
// step 3
document.Open();
// step 4
document.Add(new Paragraph("Hello World"));
}
return(ms.ToArray());
}
}
public void UpdateXMPData()
{
try
{
//ExStart:UpdateXMP
// path to the modified file
string filePath = "Images/Jpeg/sample.jpg";
// get xmp wrapper
XmpPacketWrapper xmpWrapper = MetadataUtility.ExtractXmpPackage(filePath);
// if wrapper is null
if (xmpWrapper == null)
{
// create it
xmpWrapper = new XmpPacketWrapper();
}
// create package
XmpPackage addingSchema = new XmpPackage("rs", "http://www.metadataworkinggroup.com/schemas/regions/");
// set date property
addingSchema.AddValue("rs:createdDate", DateTime.UtcNow);
// set string property
addingSchema.AddValue("rs:File", "File name");
//initialze unordered xmp array
XmpArray managersArray = new XmpArray(XmpArrayType.UNORDERED);
managersArray.AddItem("Joe Doe");
managersArray.AddItem("Adam White");
// set array property
addingSchema.SetArray("rs:managers", managersArray);
// initialize xmp language alternative
LangAlt availableDays = new LangAlt();
// add first value for 'en-us' language
availableDays.AddLanguage("en-us", "Tue");
// add second value for 'en-us' languge
availableDays.AddLanguage("en-us", "Fri");
// set LangAlt property
addingSchema.SetLangAlt("rs:days", availableDays);
// update xmp wrapper with new schema
xmpWrapper.AddPackage(addingSchema);
// create XmpMetadata with updated wrapper
XmpMetadata xmpMetadata = new XmpMetadata();
xmpMetadata.XmpPacket = xmpWrapper;
// update XMP
MetadataUtility.UpdateMetadata(filePath, xmpMetadata);
//ExEnd:UpdateXMP
}
catch (Exception exp)
{
}
}
