public virtual void CopyPagesFlushedResources()
{
byte[] docBytes;
using (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
using (PdfDocument document = new PdfDocument(new PdfWriter(outputStream))) {
PdfPage page = document.AddNewPage();
PdfResources pdfResource = page.GetResources();
PdfDictionary ocg = new PdfDictionary();
ocg.Put(PdfName.Type, PdfName.OCG);
ocg.Put(PdfName.Name, new PdfString("name1"));
ocg.MakeIndirect(document);
pdfResource.AddProperties(ocg);
pdfResource.MakeIndirect(document);
PdfPage page2 = document.AddNewPage();
page2.SetResources(pdfResource);
document.GetCatalog().GetOCProperties(true);
}
docBytes = outputStream.ToArray();
}
PdfWriter writer = new PdfWriter(new ByteArrayOutputStream());
using (PdfDocument outDocument = new PdfDocument(writer)) {
using (PdfDocument fromDocument = new PdfDocument(new PdfReader(new MemoryStream(docBytes)))) {
fromDocument.CopyPagesTo(1, 1, outDocument);
IList <String> layerNames = new List <String>();
layerNames.Add("name1");
PdfDocumentUnitTest.AssertLayerNames(outDocument, layerNames);
outDocument.FlushCopiedObjects(fromDocument);
fromDocument.CopyPagesTo(2, 2, outDocument);
NUnit.Framework.Assert.IsNotNull(outDocument.GetCatalog());
PdfOCProperties ocProperties = outDocument.GetCatalog().GetOCProperties(false);
NUnit.Framework.Assert.IsNotNull(ocProperties);
NUnit.Framework.Assert.AreEqual(1, ocProperties.GetLayers().Count);
PdfLayer layer = ocProperties.GetLayers()[0];
NUnit.Framework.Assert.IsTrue(layer.GetPdfObject().IsFlushed());
}
}
}
private bool FlushPage(int pageNum)
{
PdfPage page = pdfDoc.GetPage(pageNum);
if (page.IsFlushed())
{
return(false);
}
bool pageChanged = false;
if (!release)
{
pdfDoc.DispatchEvent(new PdfDocumentEvent(PdfDocumentEvent.END_PAGE, page));
InitCurrentLayers(pdfDoc);
}
PdfDictionary pageDict = page.GetPdfObject();
// Using PdfPage package internal methods in order to avoid PdfResources initialization: initializing PdfResources
// limits processing possibilities only to cases in which resources and specific resource type dictionaries are not flushed.
PdfDictionary resourcesDict = page.InitResources(false);
// inits /Resources dict entry if not inherited and not created yet
PdfResources resources = page.GetResources(false);
if (resources != null && resources.IsModified() && !resources.IsReadOnly())
{
resourcesDict = resources.GetPdfObject();
pageDict.Put(PdfName.Resources, resources.GetPdfObject());
pageDict.SetModified();
pageChanged = true;
}
if (!resourcesDict.IsFlushed())
{
FlushDictRecursively(resourcesDict, null);
FlushOrRelease(resourcesDict);
}
FlushDictRecursively(pageDict, pageContext);
if (release)
{
if (!page.GetPdfObject().IsModified())
{
pdfDoc.GetCatalog().GetPageTree().ReleasePage(pageNum);
page.UnsetForbidRelease();
page.GetPdfObject().Release();
}
}
else
{
if (pdfDoc.IsTagged() && !pdfDoc.GetStructTreeRoot().IsFlushed())
{
page.TryFlushPageTags();
}
if (!pdfDoc.IsAppendMode() || page.GetPdfObject().IsModified())
{
page.ReleaseInstanceFields();
page.GetPdfObject().Flush();
}
else
{
// it's append mode
pdfDoc.GetCatalog().GetPageTree().ReleasePage(pageNum);
page.UnsetForbidRelease();
page.GetPdfObject().Release();
}
}
layersRefs.Clear();
return(pageChanged);
}
public virtual iText.Kernel.Pdf.PdfPage SetResources(PdfResources pdfResources)
{
GetPdfObject().Put(PdfName.Resources, pdfResources.GetPdfObject());
this.resources = pdfResources;
return(this);
}