protected void AddTextDataToPdfPage(PDFDoc pdfDoc, pdftron.PDF.Page pdfPage, string text)
{
var elementWriter = new ElementWriter();
try
{
elementWriter.Begin(pdfPage);
var elementBuilder = new ElementBuilder();
var textFont = Font.Create(pdfDoc, Font.StandardType1Font.e_times_roman);
var textFontSize = 10.0;
var textElement = elementBuilder.CreateTextBegin(textFont, textFontSize);
elementWriter.WriteElement(textElement);
elementBuilder.CreateTextRun(text);
elementWriter.WriteElement(textElement);
var textEnd = elementBuilder.CreateTextEnd();
elementWriter.WriteElement(textEnd);
elementWriter.Flush();
elementWriter.End();
}
finally
{
elementWriter.Dispose();
}
}
static Obj CreateHighlightAppearance(List <Rect> boxes, ColorPt highlightColor, double highlightOpacity, Document document)
{
var elementBuilder = new ElementBuilder();
elementBuilder.PathBegin();
boxes.ForEach(box => elementBuilder.Rect(box.x1 - 2, box.y1, box.x2 - box.x1, box.y2 - box.y1));
Element element = elementBuilder.PathEnd();
element.SetPathFill(true);
element.SetPathStroke(false);
GState elementGraphicState = element.GetGState();
elementGraphicState.SetFillColorSpace(ColorSpace.CreateDeviceRGB());
elementGraphicState.SetFillColor(highlightColor);
elementGraphicState.SetFillOpacity(highlightOpacity);
elementGraphicState.SetBlendMode(GState.BlendMode.e_bl_multiply);
var elementWriter = new ElementWriter();
elementWriter.Begin(document);
elementWriter.WriteElement(element);
Obj highlightAppearance = elementWriter.End();
elementBuilder.Dispose();
elementWriter.Dispose();
Rect boundingBox = RectangleUnion(boxes);
highlightAppearance.PutRect("BBox", boundingBox.x1, boundingBox.y1, boundingBox.x2, boundingBox.y2);
highlightAppearance.PutName("Subtype", "Form");
return(highlightAppearance);
}