/// <summary>Creates form XObject from page content.</summary>
/// <remarks>
/// Creates form XObject from page content.
/// The page shall be from the document, to which FormXObject will be added.
/// </remarks>
/// <param name="page"/>
public PdfFormXObject(PdfPage page)
: this(page.GetCropBox())
{
GetPdfObject().GetOutputStream().WriteBytes(page.GetContentBytes());
resources = new PdfResources((PdfDictionary)page.GetResources().GetPdfObject().Clone());
GetPdfObject().Put(PdfName.Resources, resources.GetPdfObject());
}
public override void CheckIsoConformance(Object obj, IsoKey key, PdfResources resources)
{
CanvasGraphicsState gState;
PdfDictionary currentColorSpaces = null;
if (resources != null)
{
currentColorSpaces = resources.GetPdfObject().GetAsDictionary(PdfName.ColorSpace);
}
switch (key)
{
case IsoKey.CANVAS_STACK: {
checker.CheckCanvasStack((char)obj);
break;
}
case IsoKey.PDF_OBJECT: {
checker.CheckPdfObject((PdfObject)obj);
break;
}
case IsoKey.RENDERING_INTENT: {
checker.CheckRenderingIntent((PdfName)obj);
break;
}
case IsoKey.INLINE_IMAGE: {
checker.CheckInlineImage((PdfStream)obj, currentColorSpaces);
break;
}
case IsoKey.EXTENDED_GRAPHICS_STATE: {
gState = (CanvasGraphicsState)obj;
checker.CheckExtGState(gState);
break;
}
case IsoKey.FILL_COLOR: {
gState = (CanvasGraphicsState)obj;
checker.CheckColor(gState.GetFillColor(), currentColorSpaces, true);
break;
}
case IsoKey.PAGE: {
checker.CheckSinglePage((PdfPage)obj);
break;
}
case IsoKey.STROKE_COLOR: {
gState = (CanvasGraphicsState)obj;
checker.CheckColor(gState.GetStrokeColor(), currentColorSpaces, false);
break;
}
case IsoKey.TAG_STRUCTURE_ELEMENT: {
checker.CheckTagStructureElement((PdfObject)obj);
break;
}
}
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PdfFont font = PdfFontFactory.CreateFont(FONT, null, true);
// Set the full font to be included and all subset ranges to be removed.
font.SetSubset(false);
PdfResources acroResources = new PdfResources();
PdfName fontResourceName = acroResources.AddFont(pdf, font);
PdfAcroForm.GetAcroForm(pdf, true).SetDefaultResources(acroResources.GetPdfObject());
Rectangle rect = new Rectangle(100, 700, 200, 120);
String annotationText = "Annotation text";
/* Set a default appearance string:
* Tf - a text font operator
* 24 - a font size (zero value meas that the font shall be auto-sized)
* fontResourceName - a font value (shall match a resource name in the Font entry
* of the default resource dictionary)
* 1 0 0 rg - a color value (red)
*/
PdfString daString = new PdfString(fontResourceName + " 24 Tf 1 0 0 rg");
PdfAnnotation annotation = new PdfFreeTextAnnotation(rect, new PdfString(annotationText, PdfEncodings.UNICODE_BIG))
.SetDefaultAppearance(daString);
pdf
.AddNewPage()
.AddAnnotation(annotation);
pdf.Close();
}
private void TestResourceCreated(PdfDocument doc, int pageNo)
{
PdfResources res = doc.GetPage(pageNo).GetResources();
NUnit.Framework.Assert.AreEqual(1, res.GetPdfObject().Size());
foreach (PdfName name in res.GetResourceNames())
{
PdfObject obj = res.GetResourceObject(PdfName.XObject, name);
NUnit.Framework.Assert.IsTrue(obj.IsStream());
}
}
public Tiling(Rectangle bbox, float xStep, float yStep, bool colored)
: base(new PdfStream())
{
GetPdfObject().Put(PdfName.Type, PdfName.Pattern);
GetPdfObject().Put(PdfName.PatternType, new PdfNumber(1));
GetPdfObject().Put(PdfName.PaintType, new PdfNumber(colored ? PdfPattern.Tiling.PaintType.COLORED : PdfPattern.Tiling.PaintType
.UNCOLORED));
GetPdfObject().Put(PdfName.TilingType, new PdfNumber(PdfPattern.Tiling.TilingType.CONSTANT_SPACING));
GetPdfObject().Put(PdfName.BBox, new PdfArray(bbox));
GetPdfObject().Put(PdfName.XStep, new PdfNumber(xStep));
GetPdfObject().Put(PdfName.YStep, new PdfNumber(yStep));
resources = new PdfResources();
GetPdfObject().Put(PdfName.Resources, resources.GetPdfObject());
}
private IDictionary <int, CleanUpImagesCompareTool.PageImageObjectsPaths> ExtractImagesFromPdf(String pdf,
String outputPath)
{
using (PdfReader readerPdf = new PdfReader(pdf)) {
using (PdfDocument pdfDoc = new PdfDocument(readerPdf)) {
IDictionary <int, CleanUpImagesCompareTool.PageImageObjectsPaths> imageObjectDatas = new Dictionary <int, CleanUpImagesCompareTool.PageImageObjectsPaths
>();
for (int i = 1; i <= pdfDoc.GetNumberOfPages(); i++)
{
PdfPage page = pdfDoc.GetPage(i);
CleanUpImagesCompareTool.PageImageObjectsPaths imageObjectData = new CleanUpImagesCompareTool.PageImageObjectsPaths
(page.GetPdfObject().GetIndirectReference());
Stack <LocalPathItem> baseLocalPath = new Stack <LocalPathItem>();
PdfResources pdfResources = page.GetResources();
if (pdfResources.GetPdfObject().IsIndirect())
{
imageObjectData.AddIndirectReference(pdfResources.GetPdfObject().GetIndirectReference());
}
else
{
baseLocalPath.Push(new DictPathItem(PdfName.Resources));
}
PdfDictionary xObjects = pdfResources.GetResource(PdfName.XObject);
if (xObjects == null)
{
continue;
}
if (xObjects.IsIndirect())
{
imageObjectData.AddIndirectReference(xObjects.GetIndirectReference());
baseLocalPath.Clear();
}
else
{
baseLocalPath.Push(new DictPathItem(PdfName.XObject));
}
bool isPageToGsExtract = false;
foreach (PdfName objectName in xObjects.KeySet())
{
if (!xObjects.Get(objectName).IsStream() || !PdfName.Image.Equals(xObjects.GetAsStream(objectName).GetAsName
(PdfName.Subtype)))
{
continue;
}
PdfImageXObject pdfObject = new PdfImageXObject(xObjects.GetAsStream(objectName));
baseLocalPath.Push(new DictPathItem(objectName));
if (!useGs)
{
String extension = pdfObject.IdentifyImageFileExtension();
String fileName = outputPath + objectName + "_" + i + "." + extension;
CreateImageFromPdfXObject(fileName, pdfObject);
}
else
{
isPageToGsExtract = true;
}
Stack <LocalPathItem> reversedStack = new Stack <LocalPathItem>();
reversedStack.AddAll(baseLocalPath);
Stack <LocalPathItem> resultStack = new Stack <LocalPathItem>();
resultStack.AddAll(reversedStack);
imageObjectData.AddLocalPath(resultStack);
baseLocalPath.Pop();
}
if (useGs && isPageToGsExtract)
{
String fileName = "Page_" + i;
ghostscriptHelper.RunGhostScriptImageGeneration(pdf, outputPath, fileName, i.ToString());
}
CleanUpImagesCompareTool.ImageRenderListener listener = new CleanUpImagesCompareTool.ImageRenderListener();
PdfCanvasProcessor parser = new PdfCanvasProcessor(listener);
parser.ProcessPageContent(page);
ignoredImagesAreas.Put(i, listener.GetImageRectangles());
imageObjectDatas.Put(i, imageObjectData);
}
return(imageObjectDatas);
}
}
}