static void AddCovePage(PDFDoc doc) { // Here we dynamically generate cover page (please see ElementBuilder // sample for more extensive coverage of PDF creation API). Page page = doc.PageCreate(new Rect(0, 0, 200, 200)); using (ElementBuilder b = new ElementBuilder()) using (ElementWriter w = new ElementWriter()) { w.Begin(page); Font font = Font.Create(doc, "Arial", ""); w.WriteElement(b.CreateTextBegin(font, 12)); Element e = b.CreateTextRun("My PDF Collection"); e.SetTextMatrix(1, 0, 0, 1, 50, 96); e.GetGState().SetFillColorSpace(ColorSpace.CreateDeviceRGB()); e.GetGState().SetFillColor(new ColorPt(1, 0, 0)); w.WriteElement(e); w.WriteElement(b.CreateTextEnd()); w.End(); doc.PagePushBack(page); } // Alternatively we could import a PDF page from a template PDF document // (for an example please see PDFPage sample project). // ... }
static PatternColor CreateTilingPattern(PDFDoc doc) { using (ElementWriter writer = new ElementWriter()) using (ElementBuilder eb = new ElementBuilder()) { // Create a new pattern content stream - a heart. ------------ writer.Begin(doc); eb.PathBegin(); eb.MoveTo(0, 0); eb.CurveTo(500, 500, 125, 625, 0, 500); eb.CurveTo(-125, 625, -500, 500, 0, 0); Element heart = eb.PathEnd(); heart.SetPathFill(true); // Set heart color to red. heart.GetGState().SetFillColorSpace(ColorSpace.CreateDeviceRGB()); heart.GetGState().SetFillColor(new ColorPt(1, 0, 0)); writer.WriteElement(heart); Obj pattern_dict = writer.End(); // Initialize pattern dictionary. For details on what each parameter represents please // refer to Table 4.22 (Section '4.6.2 Tiling Patterns') in PDF Reference Manual. pattern_dict.PutName("Type", "Pattern"); pattern_dict.PutNumber("PatternType", 1); // TilingType - Constant spacing. pattern_dict.PutNumber("TilingType", 1); // This is a Type1 pattern - A colored tiling pattern. pattern_dict.PutNumber("PaintType", 1); // Set bounding box pattern_dict.PutRect("BBox", -253, 0, 253, 545); // Set the pattern matrix pattern_dict.PutMatrix("Matrix", new Matrix2D(0.04, 0, 0, 0.04, 0, 0)); // Set the desired horizontal and vertical spacing between pattern cells, // measured in the pattern coordinate system. pattern_dict.PutNumber("XStep", 1000); pattern_dict.PutNumber("YStep", 1000); return(new PatternColor(pattern_dict)); // finished creating the Pattern resource } }
// Creates some content (a path in the shape of a heart) and associate it with the vector layer static Obj CreateGroup2(PDFDoc doc, Obj layer) { using (ElementWriter writer = new ElementWriter()) using (ElementBuilder builder = new ElementBuilder()) { writer.Begin(doc); // Create a path object in the shape of a heart. builder.PathBegin(); // start constructing the path builder.MoveTo(306, 396); builder.CurveTo(681, 771, 399.75, 864.75, 306, 771); builder.CurveTo(212.25, 864.75, -69, 771, 306, 396); builder.ClosePath(); Element element = builder.PathEnd(); // the path geometry is now specified. // Set the path FILL color space and color. element.SetPathFill(true); GState gstate = element.GetGState(); gstate.SetFillColorSpace(ColorSpace.CreateDeviceCMYK()); gstate.SetFillColor(new ColorPt(1, 0, 0, 0)); // cyan // Set the path STROKE color space and color. element.SetPathStroke(true); gstate.SetStrokeColorSpace(ColorSpace.CreateDeviceRGB()); gstate.SetStrokeColor(new ColorPt(1, 0, 0)); // red gstate.SetLineWidth(20); gstate.SetTransform(0.5, 0, 0, 0.5, 280, 300); writer.WriteElement(element); Obj grp_obj = writer.End(); // Indicate that this form (content group) belongs to the given layer (OCG). grp_obj.PutName("Subtype", "Form"); grp_obj.Put("OC", layer); grp_obj.PutRect("BBox", 0, 0, 1000, 1000); // Set the clip box for the content. return(grp_obj); } }
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); }
static void Main(string[] args) { PDFNet.Initialize(); // Relative path to the folder containing test files. string input_path = "../../TestFiles/"; string output_path = "../../TestFiles/Output/"; try { using (PDFDoc doc = new PDFDoc()) using (ElementBuilder eb = new ElementBuilder()) // ElementBuilder is used to build new Element objects using (ElementWriter writer = new ElementWriter()) // ElementWriter is used to write Elements to the page { // Start a new page ------------------------------------ // Position an image stream on several places on the page Page page = doc.PageCreate(new Rect(0, 0, 612, 794)); writer.Begin(page); // begin writing to this page // Create an Image that can be reused multiple times in the document or // multiple on the same page. MappedFile img_file = new MappedFile(input_path + "peppers.jpg"); FilterReader img_data = new FilterReader(img_file); Image img = Image.Create(doc, img_data, 400, 600, 8, ColorSpace.CreateDeviceRGB(), Image.InputFilter.e_jpeg); Element element = eb.CreateImage(img, new Matrix2D(200, -145, 20, 300, 200, 150)); writer.WritePlacedElement(element); GState gstate = element.GetGState(); // use the same image (just change its matrix) gstate.SetTransform(200, 0, 0, 300, 50, 450); writer.WritePlacedElement(element); // use the same image again (just change its matrix). writer.WritePlacedElement(eb.CreateImage(img, 300, 600, 200, -150)); writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ // Construct and draw a path object using different styles page = doc.PageCreate(new Rect(0, 0, 612, 794)); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset GState to default eb.PathBegin(); // start constructing the path eb.MoveTo(306, 396); eb.CurveTo(681, 771, 399.75, 864.75, 306, 771); eb.CurveTo(212.25, 864.75, -69, 771, 306, 396); eb.ClosePath(); element = eb.PathEnd(); // the path is now finished element.SetPathFill(true); // the path should be filled // Set the path color space and color gstate = element.GetGState(); gstate.SetFillColorSpace(ColorSpace.CreateDeviceCMYK()); gstate.SetFillColor(new ColorPt(1, 0, 0, 0)); // cyan gstate.SetTransform(0.5, 0, 0, 0.5, -20, 300); writer.WritePlacedElement(element); // Draw the same path using a different stroke color element.SetPathStroke(true); // this path is should be filled and stroked gstate.SetFillColor(new ColorPt(0, 0, 1, 0)); // yellow gstate.SetStrokeColorSpace(ColorSpace.CreateDeviceRGB()); gstate.SetStrokeColor(new ColorPt(1, 0, 0)); // red gstate.SetTransform(0.5, 0, 0, 0.5, 280, 300); gstate.SetLineWidth(20); writer.WritePlacedElement(element); // Draw the same path with with a given dash pattern element.SetPathFill(false); // this path is should be only stroked gstate.SetStrokeColor(new ColorPt(0, 0, 1)); // blue gstate.SetTransform(0.5, 0, 0, 0.5, 280, 0); double[] dash_pattern = { 30 }; gstate.SetDashPattern(dash_pattern, 0); writer.WritePlacedElement(element); // Use the path as a clipping path writer.WriteElement(eb.CreateGroupBegin()); // Save the graphics state // Start constructing a new path (the old path was lost when we created // a new Element using CreateGroupBegin()). eb.PathBegin(); eb.MoveTo(306, 396); eb.CurveTo(681, 771, 399.75, 864.75, 306, 771); eb.CurveTo(212.25, 864.75, -69, 771, 306, 396); eb.ClosePath(); element = eb.PathEnd(); // path is now built element.SetPathClip(true); // this path is a clipping path element.SetPathStroke(true); // this path is should be filled and stroked gstate = element.GetGState(); gstate.SetTransform(0.5, 0, 0, 0.5, -20, 0); writer.WriteElement(element); writer.WriteElement(eb.CreateImage(img, 100, 300, 400, 600)); writer.WriteElement(eb.CreateGroupEnd()); // Restore the graphics state writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ page = doc.PageCreate(new Rect(0, 0, 612, 794)); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset GState to default // Begin writing a block of text element = eb.CreateTextBegin(Font.Create(doc, Font.StandardType1Font.e_times_roman), 12); writer.WriteElement(element); string data = "Hello World!"; element = eb.CreateTextRun(data); element.SetTextMatrix(10, 0, 0, 10, 0, 600); element.GetGState().SetLeading(15); // Set the spacing between lines writer.WriteElement(element); writer.WriteElement(eb.CreateTextNewLine()); // New line element = eb.CreateTextRun(data); gstate = element.GetGState(); gstate.SetTextRenderMode(GState.TextRenderingMode.e_stroke_text); gstate.SetCharSpacing(-1.25); gstate.SetWordSpacing(-1.25); writer.WriteElement(element); writer.WriteElement(eb.CreateTextNewLine()); // New line element = eb.CreateTextRun(data); gstate = element.GetGState(); gstate.SetCharSpacing(0); gstate.SetWordSpacing(0); gstate.SetLineWidth(3); gstate.SetTextRenderMode(GState.TextRenderingMode.e_fill_stroke_text); gstate.SetStrokeColorSpace(ColorSpace.CreateDeviceRGB()); gstate.SetStrokeColor(new ColorPt(1, 0, 0)); // red gstate.SetFillColorSpace(ColorSpace.CreateDeviceCMYK()); gstate.SetFillColor(new ColorPt(1, 0, 0, 0)); // cyan writer.WriteElement(element); writer.WriteElement(eb.CreateTextNewLine()); // New line // Set text as a clipping path to the image. element = eb.CreateTextRun(data); gstate = element.GetGState(); gstate.SetTextRenderMode(GState.TextRenderingMode.e_clip_text); writer.WriteElement(element); // Finish the block of text writer.WriteElement(eb.CreateTextEnd()); // Draw an image that will be clipped by the above text writer.WriteElement(eb.CreateImage(img, 10, 100, 1300, 720)); writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ // // The example illustrates how to embed the external font in a PDF document. // The example also shows how ElementReader can be used to copy and modify // Elements between pages. using (ElementReader reader = new ElementReader()) { // Start reading Elements from the last page. We will copy all Elements to // a new page but will modify the font associated with text. reader.Begin(doc.GetPage(doc.GetPageCount())); page = doc.PageCreate(new Rect(0, 0, 1300, 794)); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset GState to default // Embed an external font in the document. Font font = Font.CreateTrueTypeFont(doc, input_path + "font.ttf"); while ((element = reader.Next()) != null) // Read page contents { if (element.GetType() == Element.Type.e_text) { element.GetGState().SetFont(font, 12); } writer.WriteElement(element); } reader.End(); writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ // // The example illustrates how to embed the external font in a PDF document. // The example also shows how ElementReader can be used to copy and modify // Elements between pages. // Start reading Elements from the last page. We will copy all Elements to // a new page but will modify the font associated with text. reader.Begin(doc.GetPage(doc.GetPageCount())); page = doc.PageCreate(new Rect(0, 0, 1300, 794)); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset GState to default // Embed an external font in the document. Font font2 = Font.CreateType1Font(doc, input_path + "Misc-Fixed.pfa"); while ((element = reader.Next()) != null) // Read page contents { if (element.GetType() == Element.Type.e_text) { element.GetGState().SetFont(font2, 12); } writer.WriteElement(element); } reader.End(); writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ page = doc.PageCreate(); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset GState to default // Begin writing a block of text element = eb.CreateTextBegin(Font.Create(doc, Font.StandardType1Font.e_times_roman), 12); element.SetTextMatrix(1.5, 0, 0, 1.5, 50, 600); element.GetGState().SetLeading(15); // Set the spacing between lines writer.WriteElement(element); string para = "A PDF text object consists of operators that can show " + "text strings, move the text position, and set text state and certain " + "other parameters. In addition, there are three parameters that are " + "defined only within a text object and do not persist from one text " + "object to the next: Tm, the text matrix, Tlm, the text line matrix, " + "Trm, the text rendering matrix, actually just an intermediate result " + "that combines the effects of text state parameters, the text matrix " + "(Tm), and the current transformation matrix"; int para_end = para.Length; int text_run = 0; int text_run_end; double para_width = 300; // paragraph width is 300 units double cur_width = 0; while (text_run < para_end) { text_run_end = para.IndexOf(' ', text_run); if (text_run_end < 0) { text_run_end = para_end - 1; } string text = para.Substring(text_run, text_run_end - text_run + 1); element = eb.CreateTextRun(text); if (cur_width + element.GetTextLength() < para_width) { writer.WriteElement(element); cur_width += element.GetTextLength(); } else { writer.WriteElement(eb.CreateTextNewLine()); // New line text = para.Substring(text_run, text_run_end - text_run + 1); element = eb.CreateTextRun(text); cur_width = element.GetTextLength(); writer.WriteElement(element); } text_run = text_run_end + 1; } // ----------------------------------------------------------------------- // The following code snippet illustrates how to adjust spacing between // characters (text runs). element = eb.CreateTextNewLine(); writer.WriteElement(element); // Skip 2 lines writer.WriteElement(element); writer.WriteElement(eb.CreateTextRun("An example of space adjustments between inter-characters:")); writer.WriteElement(eb.CreateTextNewLine()); // Write string "AWAY" without space adjustments between characters. element = eb.CreateTextRun("AWAY"); writer.WriteElement(element); writer.WriteElement(eb.CreateTextNewLine()); // Write string "AWAY" with space adjustments between characters. element = eb.CreateTextRun("A"); writer.WriteElement(element); element = eb.CreateTextRun("W"); element.SetPosAdjustment(140); writer.WriteElement(element); element = eb.CreateTextRun("A"); element.SetPosAdjustment(140); writer.WriteElement(element); element = eb.CreateTextRun("Y again"); element.SetPosAdjustment(115); writer.WriteElement(element); // Draw the same strings using direct content output... writer.Flush(); // flush pending Element writing operations. // You can also write page content directly to the content stream using // ElementWriter.WriteString(...) and ElementWriter.WriteBuffer(...) methods. // Note that if you are planning to use these functions you need to be familiar // with PDF page content operators (see Appendix A in PDF Reference Manual). // Because it is easy to make mistakes during direct output we recommend that // you use ElementBuilder and Element interface instead. writer.WriteString("T* T* "); // New Lines // writer.WriteElement(eb.CreateTextNewLine()); writer.WriteString("(Direct output to PDF page content stream:) Tj T* "); writer.WriteString("(AWAY) Tj T* "); writer.WriteString("[(A)140(W)140(A)115(Y again)] TJ "); // Finish the block of text writer.WriteElement(eb.CreateTextEnd()); writer.End(); // save changes to the current page doc.PagePushBack(page); // Start a new page ------------------------------------ // Image Masks // // In the opaque imaging model, images mark all areas they occupy on the page as // if with opaque paint. All portions of the image, whether black, white, gray, // or color, completely obscure any marks that may previously have existed in the // same place on the page. // In the graphic arts industry and page layout applications, however, it is common // to crop or 'mask out' the background of an image and then place the masked image // on a different background, allowing the existing background to show through the // masked areas. This sample illustrates how to use image masks. page = doc.PageCreate(); writer.Begin(page); // begin writing to the page // Create the Image Mask MappedFile imgf = new MappedFile(input_path + "imagemask.dat"); FilterReader mask_read = new FilterReader(imgf); ColorSpace device_gray = ColorSpace.CreateDeviceGray(); Image mask = Image.Create(doc, mask_read, 64, 64, 1, device_gray, Image.InputFilter.e_ascii_hex); mask.GetSDFObj().PutBool("ImageMask", true); element = eb.CreateRect(0, 0, 612, 794); element.SetPathStroke(false); element.SetPathFill(true); element.GetGState().SetFillColorSpace(device_gray); element.GetGState().SetFillColor(new ColorPt(0.8)); writer.WritePlacedElement(element); element = eb.CreateImage(mask, new Matrix2D(200, 0, 0, -200, 40, 680)); element.GetGState().SetFillColor(new ColorPt(0.1)); writer.WritePlacedElement(element); element.GetGState().SetFillColorSpace(ColorSpace.CreateDeviceRGB()); element.GetGState().SetFillColor(new ColorPt(1, 0, 0)); element = eb.CreateImage(mask, new Matrix2D(200, 0, 0, -200, 320, 680)); writer.WritePlacedElement(element); element.GetGState().SetFillColor(new ColorPt(0, 1, 0)); element = eb.CreateImage(mask, new Matrix2D(200, 0, 0, -200, 40, 380)); writer.WritePlacedElement(element); { // This sample illustrates Explicit Masking. img = Image.Create(doc, input_path + "peppers.jpg"); // mask is the explicit mask for the primary (base) image img.SetMask(mask); element = eb.CreateImage(img, new Matrix2D(200, 0, 0, -200, 320, 380)); writer.WritePlacedElement(element); } writer.End(); // save changes to the current page doc.PagePushBack(page); // Transparency sample ---------------------------------- // Start a new page ------------------------------------- page = doc.PageCreate(); writer.Begin(page); // begin writing to this page eb.Reset(); // Reset the GState to default // Write some transparent text at the bottom of the page. element = eb.CreateTextBegin(Font.Create(doc, Font.StandardType1Font.e_times_roman), 100); // Set the text knockout attribute. Text knockout must be set outside of // the text group. gstate = element.GetGState(); gstate.SetTextKnockout(false); gstate.SetBlendMode(GState.BlendMode.e_bl_difference); writer.WriteElement(element); element = eb.CreateTextRun("Transparency"); element.SetTextMatrix(1, 0, 0, 1, 30, 30); gstate = element.GetGState(); gstate.SetFillColorSpace(ColorSpace.CreateDeviceCMYK()); gstate.SetFillColor(new ColorPt(1, 0, 0, 0)); gstate.SetFillOpacity(0.5); writer.WriteElement(element); // Write the same text on top the old; shifted by 3 points element.SetTextMatrix(1, 0, 0, 1, 33, 33); gstate.SetFillColor(new ColorPt(0, 1, 0, 0)); gstate.SetFillOpacity(0.5); writer.WriteElement(element); writer.WriteElement(eb.CreateTextEnd()); // Draw three overlapping transparent circles. eb.PathBegin(); // start constructing the path eb.MoveTo(459.223, 505.646); eb.CurveTo(459.223, 415.841, 389.85, 343.04, 304.273, 343.04); eb.CurveTo(218.697, 343.04, 149.324, 415.841, 149.324, 505.646); eb.CurveTo(149.324, 595.45, 218.697, 668.25, 304.273, 668.25); eb.CurveTo(389.85, 668.25, 459.223, 595.45, 459.223, 505.646); element = eb.PathEnd(); element.SetPathFill(true); gstate = element.GetGState(); gstate.SetFillColorSpace(ColorSpace.CreateDeviceRGB()); gstate.SetFillColor(new ColorPt(0, 0, 1)); // Blue Circle gstate.SetBlendMode(GState.BlendMode.e_bl_normal); gstate.SetFillOpacity(0.5); writer.WriteElement(element); // Translate relative to the Blue Circle gstate.SetTransform(1, 0, 0, 1, 113, -185); gstate.SetFillColor(new ColorPt(0, 1, 0)); // Green Circle gstate.SetFillOpacity(0.5); writer.WriteElement(element); // Translate relative to the Green Circle gstate.SetTransform(1, 0, 0, 1, -220, 0); gstate.SetFillColor(new ColorPt(1, 0, 0)); // Red Circle gstate.SetFillOpacity(0.5); writer.WriteElement(element); writer.End(); // save changes to the current page doc.PagePushBack(page); // End page ------------------------------------ } doc.Save(output_path + "element_builder.pdf", SDFDoc.SaveOptions.e_remove_unused); Console.WriteLine("Done. Result saved in element_builder.pdf..."); } } catch (PDFNetException e) { Console.WriteLine(e.Message); } }
static void ProcessElements(ElementReader reader, ElementWriter writer, XSet visited) { Element element; while ((element = reader.Next()) != null) // Read page contents { switch (element.GetType()) { case Element.Type.e_image: case Element.Type.e_inline_image: // remove all images by skipping them break; case Element.Type.e_path: { // Set all paths to red color. GState gs = element.GetGState(); gs.SetFillColorSpace(ColorSpace.CreateDeviceRGB()); gs.SetFillColor(new ColorPt(1, 0, 0)); writer.WriteElement(element); break; } case Element.Type.e_text: { // Set all text to blue color. GState gs = element.GetGState(); gs.SetFillColorSpace(ColorSpace.CreateDeviceRGB()); gs.SetFillColor(new ColorPt(0, 0, 1)); writer.WriteElement(element); break; } case Element.Type.e_form: { writer.WriteElement(element); // write Form XObject reference to current stream Obj form_obj = element.GetXObject(); if (!visited.Contains(form_obj.GetObjNum())) // if this XObject has not been processed { // recursively process the Form XObject visited.Add(form_obj.GetObjNum()); ElementWriter new_writer = new ElementWriter(); reader.FormBegin(); new_writer.Begin(form_obj, true); reader.ClearChangeList(); new_writer.SetDefaultGState(reader); ProcessElements(reader, new_writer, visited); new_writer.End(); reader.End(); } break; } default: writer.WriteElement(element); break; } } }
static void ImageExtract(PDFDoc doc, ElementReader reader) { Element element; while ((element = reader.Next()) != null) { switch (element.GetType()) { case Element.Type.e_image: case Element.Type.e_inline_image: { Console.WriteLine("--> Image: {0}", ++image_counter); Console.WriteLine(" Width: {0}", element.GetImageWidth()); Console.WriteLine(" Height: {0}", element.GetImageHeight()); Console.WriteLine(" BPC: {0}", element.GetBitsPerComponent()); Matrix2D ctm = element.GetCTM(); double x2 = 1, y2 = 1, y1 = ctm.m_v; ctm.Mult(ref x2, ref y2); // Write the coords to 3 decimal places. Console.WriteLine(" Coords: x1={0:N2}, y1={1:N2}, x2={2:N2}, y2={3:N2}", ctm.m_h, ctm.m_v, x2, y2); pdftron.PDF.Image image = null; if (element.GetType() == Element.Type.e_image) { image = new pdftron.PDF.Image(element.GetXObject()); // Convert PDF bitmap to GDI+ Bitmap... //Bitmap bmp = element.GetBitmap(); //bmp.Save(fname, ImageFormat.Png); //bmp.Dispose(); // Instead of converting PDF images to a Bitmap, you can also extract // uncompressed/compressed image data directly using element.GetImageData() // as illustrated in ElementReaderAdv sample project. } else // inline image { if (y1 > y2) { byte[] flipped_image = FlipImage(element); image = pdftron.PDF.Image.Create(doc, flipped_image, element.GetImageWidth(), element.GetImageHeight(), 8, ColorSpace.CreateDeviceRGB()); } else { Image2RGB image2rgb = new Image2RGB(element); FilterReader image_reader = new FilterReader(image2rgb); image = pdftron.PDF.Image.Create(doc, image_reader, element.GetImageWidth(), element.GetImageHeight(), 8, ColorSpace.CreateDeviceRGB()); } } string fname = output_path + "image_extract1_" + image_counter.ToString(); image.Export(fname); // or ExporAsPng() or ExporAsTiff() ... break; } case Element.Type.e_form: // Process form XObjects { reader.FormBegin(); ImageExtract(doc, reader); reader.End(); break; } } } }