//20130604 :: mellorasinxelas
/// <summary>
/// Draws the textblock
/// </summary>
/// <param name="pdfDraw"></param>
/// <param name="data"></param>
public override void Draw(PDFDraw.IPDFDraw pdfDraw, System.Collections.IDictionary data)
{
// StringBuilder txt = new StringBuilder(Text);
// foreach (Variable act in VAR)
// {
// string var = act.Name;
//
// object dataV = data[var]; //null if not exists. Reduce HASH access.
//
// //first of all if its formatable. This system supports null values.
// if(act is FormatableVariable){
// object formatV = ((FormatableVariable)act).GetFormatedValue(dataV);
// txt.Replace(var, formatV != null? formatV.ToString() : null );
// }
// else if (dataV != null)
// { //original
// txt.Replace(var, dataV.ToString() );
// }
// else if(PDFTemplate.UseOptionalTags && !act.Optional){
// //only NOT optional vars with OptionalTags ON are replaced with empty value.
// txt.Replace(var, "");
// }
// }
//change to super gettext.
pdfDraw.DrawBlockString(GetText( data ), X, Width, FontAttributes, TextAttrs);
}
public PdfBookReader(PDFDoc book)
{
PDFNet.Initialize();
pdftron.PDFNet.SetViewerCache(100 * 1024 * 1024, true);
_book = book;
m_draw = new PDFDraw();
}
/// <summary>
/// A static method for rasterizing a given page to a file.
/// </summary>
static void DoDraw(PDFDoc doc, Page pg, string output_path)
{
//acquire a read lock, since we will be accessing the document.
doc.LockRead();
//Acquiring a write lock when holding a read lock is illegal,
//and would cause an exception to be thrown:
//doc.Lock();
//draw the page
using (PDFDraw draw = new PDFDraw())
{
draw.SetDPI(92);
draw.Export(pg, output_path);
Console.WriteLine("Rendered page: Result saved in {0}", output_path);
}
//release the read lock
doc.UnlockRead();
}
public override void Draw(PDFDraw.IPDFDraw pdfDraw, System.Collections.Hashtable data)
{
pdfDraw.DrawHorizontalLine(this.x1, this.x2, RectangleAttrs);
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
// The first step in every application using PDFNet is to initialize the
// library and set the path to common PDF resources. The library is usually
// initialized only once, but calling Initialize() multiple times is also fine.
PDFNet.Initialize();
try
{
// Optional: Set ICC color profiles to fine tune color conversion
// for PDF 'device' color spaces. You can use your own ICC profiles.
// Standard Adobe color profiles can be download from Adobes site:
// http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_win.html
//
// Simply drop all *.icc files in PDFNet resource folder or you specify
// the full pathname.
//---
// PDFNet.SetResourcesPath("../../../../../resources");
// PDFNet.SetColorManagement();
// PDFNet.SetDefaultDeviceCMYKProfile("USWebCoatedSWOP.icc"); // will search in PDFNet resource folder.
// PDFNet.SetDefaultDeviceRGBProfile("AdobeRGB1998.icc");
// Optional: Set predefined font mappings to override default font
// substitution for documents with missing fonts. For example:
//---
// PDFNet.AddFontSubst("StoneSans-Semibold", "C:/WINDOWS/Fonts/comic.ttf");
// PDFNet.AddFontSubst("StoneSans", "comic.ttf"); // search for 'comic.ttf' in PDFNet resource folder.
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Identity, "C:/WINDOWS/Fonts/arialuni.ttf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Japan1, "C:/Program Files/Adobe/Acrobat 7.0/Resource/CIDFont/KozMinProVI-Regular.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Japan2, "c:/myfonts/KozMinProVI-Regular.otf");
//
// If fonts are in PDFNet resource folder, it is not necessary to specify
// the full path name. For example,
//---
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Korea1, "AdobeMyungjoStd-Medium.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_CNS1, "AdobeSongStd-Light.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_GB1, "AdobeMingStd-Light.otf");
}
catch (Exception)
{
Console.WriteLine("The specified color profile was not found.");
}
// Relative path to the folder containing test files.
string input_path = "../../TestFiles/";
string output_path = "../../TestFiles/Output/";
using (PDFDraw draw = new PDFDraw())
{
//--------------------------------------------------------------------------------
// Example 1) Convert the first PDF page to PNG at 92 DPI.
// A three step tutorial to convert PDF page to an image.
try
{
// A) Open the PDF document.
using (PDFDoc doc = new PDFDoc(input_path + "tiger.pdf"))
{
// Initialize the security handler, in case the PDF is encrypted.
doc.InitSecurityHandler();
// B) The output resolution is set to 92 DPI.
draw.SetDPI(92);
// C) Rasterize the first page in the document and save the result as PNG.
Page pg = doc.GetPage(1);
draw.Export(pg, output_path + "tiger_92dpi.png");
Console.WriteLine("Example 1: tiger_92dpi.png");
// Export the same page as TIFF
draw.Export(pg, output_path + "tiger_92dpi.tif", "TIFF");
}
}
catch (PDFNetException e) {
Console.WriteLine(e.Message);
}
//--------------------------------------------------------------------------------
// Example 2) Convert the all pages in a given document to JPEG at 72 DPI.
ObjSet hint_set = new ObjSet(); // A collection of rendering 'hits'.
Console.WriteLine("Example 2:");
try
{
using (PDFDoc doc = new PDFDoc(input_path + "newsletter.pdf"))
{
// Initialize the security handler, in case the PDF is encrypted.
doc.InitSecurityHandler();
draw.SetDPI(72); // Set the output resolution is to 72 DPI.
// Use optional encoder parameter to specify JPEG quality.
Obj encoder_param = hint_set.CreateDict();
encoder_param.PutNumber("Quality", 80);
// Traverse all pages in the document.
for (PageIterator itr = doc.GetPageIterator(); itr.HasNext(); itr.Next())
{
string output_filename = string.Format("newsletter{0:d}.jpg", itr.GetPageNumber());
Console.WriteLine("newsletter{0:d}.jpg", itr.GetPageNumber());
draw.Export(itr.Current(), output_path + output_filename, "JPEG", encoder_param);
}
}
Console.WriteLine("Done.");
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
try // Examples 3-6
{
// Common code for remaining samples.
using (PDFDoc tiger_doc = new PDFDoc(input_path + "tiger.pdf"))
{
// Initialize the security handler, in case the PDF is encrypted.
tiger_doc.InitSecurityHandler();
Page page = tiger_doc.GetPage(1);
//--------------------------------------------------------------------------------
// Example 3) Convert the first page to GDI+ Bitmap. Also, rotate the
// page 90 degrees and save the result as RAW.
draw.SetDPI(100); // Set the output resolution is to 100 DPI.
draw.SetRotate(Page.Rotate.e_90); // Rotate all pages 90 degrees clockwise.
BitmapInfo buf = draw.GetBitmap(page, PDFDraw.PixelFormat.e_rgb, false);
// Save the raw RGB data to disk.
string filename = "tiger_100dpi_rot90.raw";
System.IO.File.WriteAllBytes(output_path + filename, buf.Buffer);
Console.WriteLine("Example 3: tiger_100dpi_rot90.raw");
draw.SetRotate(Page.Rotate.e_0); // Disable image rotation for remaining samples.
//--------------------------------------------------------------------------------
// Example 4) Convert PDF page to a fixed image size. Also illustrates some
// other features in PDFDraw class such as rotation, image stretching, exporting
// to grayscale, or monochrome.
// Initialize render 'gray_hint' parameter, that is used to control the
// rendering process. In this case we tell the rasterizer to export the image as
// 1 Bit Per Component (BPC) image.
Obj mono_hint = hint_set.CreateDict();
mono_hint.PutNumber("BPC", 1);
// SetImageSize can be used instead of SetDPI() to adjust page scaling
// dynamically so that given image fits into a buffer of given dimensions.
draw.SetImageSize(1000, 1000); // Set the output image to be 1000 wide and 1000 pixels tall
draw.Export(page, output_path + "tiger_1000x1000.png", "PNG", mono_hint);
Console.WriteLine("Example 4: tiger_1000x1000.png");
draw.SetImageSize(200, 400); // Set the output image to be 200 wide and 300 pixels tall
draw.SetRotate(Page.Rotate.e_180); // Rotate all pages 90 degrees clockwise.
// 'gray_hint' tells the rasterizer to export the image as grayscale.
Obj gray_hint = hint_set.CreateDict();
gray_hint.PutName("ColorSpace", "Gray");
draw.Export(page, output_path + "tiger_200x400_rot180.png", "PNG", gray_hint);
Console.WriteLine("Example 4: tiger_200x400_rot180.png");
draw.SetImageSize(400, 200, false); // The third parameter sets 'preserve-aspect-ratio' to false.
draw.SetRotate(Page.Rotate.e_0); // Disable image rotation.
draw.Export(page, output_path + "tiger_400x200_stretch.jpg", "JPEG");
Console.WriteLine("Example 4: tiger_400x200_stretch.jpg");
//--------------------------------------------------------------------------------
// Example 5) Zoom into a specific region of the page and rasterize the
// area at 200 DPI and as a thumbnail (i.e. a 50x50 pixel image).
page.SetCropBox(new Rect(216, 522, 330, 600)); // Set the page crop box.
// Select the crop region to be used for drawing.
draw.SetPageBox(Page.Box.e_crop);
draw.SetDPI(900); // Set the output image resolution to 900 DPI.
draw.Export(page, output_path + "tiger_zoom_900dpi.png", "PNG");
Console.WriteLine("Example 5: tiger_zoom_900dpi.png");
// -------------------------------------------------------------------------------
// Example 6)
draw.SetImageSize(50, 50); // Set the thumbnail to be 50x50 pixel image.
draw.Export(page, output_path + "tiger_zoom_50x50.png", "PNG");
Console.WriteLine("Example 6: tiger_zoom_50x50.png");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
Obj cmyk_hint = hint_set.CreateDict();
cmyk_hint.PutName("ColorSpace", "CMYK");
//--------------------------------------------------------------------------------
// Example 7) Convert the first PDF page to CMYK TIFF at 92 DPI.
// A three step tutorial to convert PDF page to an image.
try
{
// A) Open the PDF document.
using (PDFDoc doc = new PDFDoc(input_path + "tiger.pdf"))
{
// Initialize the security handler, in case the PDF is encrypted.
doc.InitSecurityHandler();
// B) The output resolution is set to 92 DPI.
draw.SetDPI(92);
// C) Rasterize the first page in the document and save the result as TIFF.
Page pg = doc.GetPage(1);
draw.Export(pg, output_path + "out1.tif", "TIFF", cmyk_hint);
Console.WriteLine("Example 7: out1.tif");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
//--------------------------------------------------------------------------------
// Example 8) Export raster content to PNG using different image smoothing settings.
try
{
// A) Open the PDF document.
using (PDFDoc doc = new PDFDoc(input_path + "tiger.pdf"))
{
// Initialize the security handler, in case the PDF is encrypted.
doc.InitSecurityHandler();
// B) Get the page matrix
Page pg = doc.GetPage(1);
Page.Box box = Page.Box.e_crop;
Matrix2D mtx = pg.GetDefaultMatrix(true, box);
// We want to render a quadrant, so use half of width and height
double pg_w = pg.GetPageWidth(box) / 2;
double pg_h = pg.GetPageHeight(box) / 2;
// C) Scale matrix from PDF space to buffer space
double dpi = 96.0;
double scale = dpi / 72.0; // PDF space is 72 dpi
int buf_w = (int)(Math.Floor(scale * pg_w));
int buf_h = (int)(Math.Floor(scale * pg_h));
int bytes_per_pixel = 4; // BGRA buffer
int buf_size = buf_w * buf_h * bytes_per_pixel;
mtx.Translate(0, -pg_h); // translate by '-pg_h' since we want south-west quadrant
mtx = new Matrix2D(scale, 0, 0, scale, 0, 0) * mtx;
// D) Rasterize page into memory buffer, according to our parameters
byte[] buf;
PDFRasterizer rast = new PDFRasterizer();
buf = rast.Rasterize(pg, buf_w, buf_h, buf_w * bytes_per_pixel, bytes_per_pixel, true, mtx);
// buf now contains raw BGRA bitmap.
Console.WriteLine("Example 8: Successfully rasterized into memory buffer.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
//--------------------------------------------------------------------------------
// Example 9) Export raster content to PNG using different image smoothing settings.
try
{
using (PDFDoc text_doc = new PDFDoc(input_path + "lorem_ipsum.pdf"))
{
text_doc.InitSecurityHandler();
draw.SetImageSmoothing(false, false);
string filename = "raster_text_no_smoothing.png";
draw.Export(text_doc.GetPageIterator().Current(), output_path + filename);
Console.WriteLine("Example 9 a): " + filename + ". Done.");
filename = "raster_text_smoothed.png";
draw.SetImageSmoothing(true, false /*default quality bilinear resampling*/);
draw.Export(text_doc.GetPageIterator().Current(), output_path + filename);
Console.WriteLine("Example 9 b): " + filename + ". Done.");
filename = "raster_text_high_quality.png";
draw.SetImageSmoothing(true, true /*high quality area resampling*/);
draw.Export(text_doc.GetPageIterator().Current(), output_path + filename);
Console.WriteLine("Example 9 c): " + filename + ". Done.");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
//--------------------------------------------------------------------------------
// Example 10) Export separations directly, without conversion to an output colorspace
try
{
using (PDFDoc separation_doc = new PDFDoc(input_path + "op_blend_test.pdf"))
{
separation_doc.InitSecurityHandler();
Obj separation_hint = hint_set.CreateDict();
separation_hint.PutName("ColorSpace", "Separation");
draw.SetDPI(96);
draw.SetImageSmoothing(true, true);
draw.SetOverprint(PDFRasterizer.OverprintPreviewMode.e_op_on);
string filename = "merged_separations.png";
draw.Export(separation_doc.GetPageIterator().Current(), output_path + filename, "PNG");
Console.WriteLine("Example 10 a): " + filename + ". Done.");
filename = "separation";
draw.Export(separation_doc.GetPageIterator().Current(), output_path + filename, "PNG", separation_hint);
Console.WriteLine("Example 10 b): " + filename + "_[ink].png. Done.");
filename = "separation_NChannel.tif";
draw.Export(separation_doc.GetPageIterator().Current(), output_path + filename, "TIFF", separation_hint);
Console.WriteLine("Example 10 c): " + filename + ". Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
} // using PDFDraw
}
//20130604 :: mellorasinxelas
/// <summary>
/// Draws built-in image
/// </summary>
/// <param name="pdfDraw"></param>
/// <param name="data"></param>
public override void Draw(PDFDraw.IPDFDraw pdfDraw,IDictionary data)
{
//NOTE: Dont support format.
StringBuilder src = new StringBuilder(Attributes[SrcAttributeConstant].Value);
foreach (Variable act in VAR)
{
string var = act.Name;
if (data.Contains(var))
{
src.Replace(var, data[var].ToString());
}
else if(PDFTemplate.UseOptionalTags && !act.Optional){
//only NOT optional vars with OptionalTags ON are replaced with empty value.
src.Replace(var, "");
}
}
//20150914 :: supports absolute X,Y.
float absX = Moon.PDFDraw.Helper.GetFloatAttributeValue(AbsoluteXAttributeConstant, Attributes, -1);
float absY = Moon.PDFDraw.Helper.GetFloatAttributeValue(AbsoluteYAttributeConstant, Attributes, -1);
if (absX != -1 && absY != -1)
{//new
pdfDraw.DrawImage(absX, absY, /*src.ToString(),*/ Attributes);
}
else{//classic
pdfDraw.DrawImage(X, src.ToString(), Attributes );
}
//---
}
void Execute(string[] args)
{
PDFNet.Initialize();
// Optional: Set ICC color profiles to fine tune color conversion
// for PDF 'device' color spaces. You can use your own ICC profiles.
// Standard Adobe color profiles can be download from Adobes site:
// http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_win.html
//
// Simply drop all *.icc files in PDFNet resource folder or you specify
// the full pathname.
try
{
// PDFNet.SetColorManagement();
// PDFNet.SetDefaultDeviceCMYKProfile("USWebCoatedSWOP.icc"); // will search in PDFNet resource folder.
// PDFNet.SetDefaultDeviceRGBProfile("AdobeRGB1998.icc");
}
catch (Exception)
{
Console.WriteLine("The specified color profile was not found.");
}
// Optional: Set predefined font mappings to override default font
// substitution for documents with missing fonts. For example:
//---
// PDFNet.AddFontSubst("StoneSans-Semibold", "C:/WINDOWS/Fonts/comic.ttf");
// PDFNet.AddFontSubst("StoneSans", "comic.ttf"); // search for 'comic.ttf' in PDFNet resource folder.
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Identity, "C:/WINDOWS/Fonts/arialuni.ttf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Japan1, "C:/Program Files/Adobe/Acrobat 7.0/Resource/CIDFont/KozMinProVI-Regular.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Japan2, "c:/myfonts/KozMinProVI-Regular.otf");
//
// If fonts are in PDFNet resource folder, it is not necessary to specify
// the full path name. For example,
//---
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_Korea1, "AdobeMyungjoStd-Medium.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_CNS1, "AdobeSongStd-Light.otf");
// PDFNet.AddFontSubst(PDFNet.CharacterOrdering.e_GB1, "AdobeMingStd-Light.otf");
string input_path = "../../TestFiles/"; // Relative path to the folder containing test files.
try
{
// Open the PDF document.
Console.WriteLine("Opening the input file...");
using (pdfdoc = new PDFDoc(input_path + "tiger.pdf"))
{
pdfdoc.InitSecurityHandler();
//////////////////////////////////////////////////////////////////////////
// Example 1: use the PDF::Print::StartPrintJob interface
// This is silent (no progress dialog) and blocks until print job is at spooler
// The rasterized print job is compressed before sending to printer
Console.WriteLine("Printing the input file using PDF.Print.StartPrintJob...");
// Setup printing options:
PrinterMode printerMode = new PrinterMode();
printerMode.SetAutoCenter(true);
printerMode.SetAutoRotate(true);
printerMode.SetCollation(true);
printerMode.SetCopyCount(1);
printerMode.SetDPI(300); // regardless of ordering, an explicit DPI setting overrides the OutputQuality setting
printerMode.SetDuplexing(PrinterMode.DuplexMode.e_Duplex_Auto);
printerMode.SetNUp(PrinterMode.NUp.e_NUp_1_1, PrinterMode.NUpPageOrder.e_PageOrder_LeftToRightThenTopToBottom);
printerMode.SetOrientation(PrinterMode.Orientation.e_Orientation_Portrait);
printerMode.SetOutputAnnot(PrinterMode.PrintContentTypes.e_PrintContent_DocumentAndAnnotations);
// If the XPS print path is being used, then the printer spooler file will
// ignore the grayscale option and be in full color
printerMode.SetOutputColor(PrinterMode.OutputColor.e_OutputColor_Grayscale);
printerMode.SetOutputPageBorder(false);
printerMode.SetOutputQuality(PrinterMode.OutputQuality.e_OutputQuality_Medium);
printerMode.SetPaperSize(new Rect(0, 0, 612, 792));
PageSet pagesToPrint = new PageSet(1, pdfdoc.GetPageCount(), PageSet.Filter.e_all);
// You can get the name of the default printer by using:
// PrinterSettings ps = new PrinterSettings();
// String printerName ps.PrinterName();
// however Print.StartPrintJob can also determine this for you, just pass an empty printer name
// Print the document on the default printer, name the print job the name of the
// file, print to the printer not a file, and use printer options:
Print.StartPrintJob(pdfdoc, "", pdfdoc.GetFileName(), "", pagesToPrint, printerMode, null);
//////////////////////////////////////////////////////////////////////////
// Example 2: use the .Net PrintDocument class and PDFDraw rasterizer
// This will pop up a progress dialog
// Start printing from the first page
pageitr = pdfdoc.GetPageIterator();
pdfdraw = new PDFDraw();
pdfdraw.SetPrintMode(true);
pdfdraw.SetRasterizerType(PDFRasterizer.Type.e_BuiltIn);
// Create a printer
PrintDocument printer = new PrintDocument();
// name the document to be printed
printer.DocumentName = pdfdoc.GetFileName();
// Set the PrintPage delegate which will be invoked to print each page
printer.PrintPage += new PrintPageEventHandler(PrintPage);
Console.WriteLine("Printing the input file using .NET PrintDocument and PDFDraw...");
printer.Print(); // Start printing
pdfdraw.Dispose(); // Free allocated resources (generally a good idea when printing many documents).
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// Draws this textbox
/// </summary>
/// <param name="pdfDraw"></param>
/// <param name="data"></param>
public override void Draw(PDFDraw.IPDFDraw pdfDraw, System.Collections.IDictionary data)
{
pdfDraw.DrawString( GetText(data), X, Width, FontAttributes, Attributes);
}
/// <summary>
/// Draws element
/// </summary>
/// <param name="pdfDraw"></param>
/// <param name="data"></param>
public override void Draw(PDFDraw.IPDFDraw pdfDraw, System.Collections.IDictionary data)
{
pdfDraw.DrawVerticalLine(this.x1, this.x2, lineAttrs);
}
static void Main(string[] args)
{
PDFNet.Initialize();
try
{
using (PDFDoc doc = new PDFDoc())
using (ElementBuilder builder = new ElementBuilder()) // ElementBuilder is used to build new Element objects
using (ElementWriter writer = new ElementWriter()) // ElementWriter is used to write Elements to the page
{
// Create three layers...
Group image_layer = CreateLayer(doc, "Image Layer");
Group text_layer = CreateLayer(doc, "Text Layer");
Group vector_layer = CreateLayer(doc, "Vector Layer");
// Start a new page ------------------------------------
Page page = doc.PageCreate();
writer.Begin(page); // begin writing to this page
// Add new content to the page and associate it with one of the layers.
Element element = builder.CreateForm(CreateGroup1(doc, image_layer.GetSDFObj()));
writer.WriteElement(element);
element = builder.CreateForm(CreateGroup2(doc, vector_layer.GetSDFObj()));
writer.WriteElement(element);
// Add the text layer to the page...
bool enableOCMD = false; // set to 'true' to enable 'ocmd' example.
if (enableOCMD)
{
// A bit more advanced example of how to create an OCMD text layer that
// is visible only if text, image and path layers are all 'ON'.
// An example of how to set 'Visibility Policy' in OCMD.
Obj ocgs = doc.CreateIndirectArray();
ocgs.PushBack(image_layer.GetSDFObj());
ocgs.PushBack(vector_layer.GetSDFObj());
ocgs.PushBack(text_layer.GetSDFObj());
OCMD text_ocmd = OCMD.Create(doc, ocgs, OCMD.VisibilityPolicyType.e_AllOn);
element = builder.CreateForm(CreateGroup3(doc, text_ocmd.GetSDFObj()));
}
else
{
element = builder.CreateForm(CreateGroup3(doc, text_layer.GetSDFObj()));
}
writer.WriteElement(element);
// Add some content to the page that does not belong to any layer...
// In this case this is a rectangle representing the page border.
element = builder.CreateRect(0, 0, page.GetPageWidth(), page.GetPageHeight());
element.SetPathFill(false);
element.SetPathStroke(true);
element.GetGState().SetLineWidth(40);
writer.WriteElement(element);
writer.End(); // save changes to the current page
doc.PagePushBack(page);
// Set the default viewing preference to display 'Layer' tab.
PDFDocViewPrefs prefs = doc.GetViewPrefs();
prefs.SetPageMode(PDFDocViewPrefs.PageMode.e_UseOC);
doc.Save(output_path + "pdf_layers.pdf", SDFDoc.SaveOptions.e_linearized);
Console.WriteLine("Done.");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
// The following is a code snippet shows how to selectively render
// and export PDF layers.
try
{
using (PDFDoc doc = new PDFDoc(output_path + "pdf_layers.pdf"))
{
doc.InitSecurityHandler();
if (!doc.HasOC())
{
Console.WriteLine("The document does not contain 'Optional Content'");
}
else
{
Config init_cfg = doc.GetOCGConfig();
Context ctx = new Context(init_cfg);
using (PDFDraw pdfdraw = new PDFDraw())
{
pdfdraw.SetImageSize(1000, 1000);
pdfdraw.SetOCGContext(ctx); // Render the page using the given OCG context.
Page page = doc.GetPage(1); // Get the first page in the document.
pdfdraw.Export(page, output_path + "pdf_layers_default.png");
// Disable drawing of content that is not optional (i.e. is not part of any layer).
ctx.SetNonOCDrawing(false);
// Now render each layer in the input document to a separate image.
Obj ocgs = doc.GetOCGs(); // Get the array of all OCGs in the document.
if (ocgs != null)
{
int i, sz = ocgs.Size();
for (i = 0; i < sz; ++i)
{
Group ocg = new Group(ocgs.GetAt(i));
ctx.ResetStates(false);
ctx.SetState(ocg, true);
string fname = "pdf_layers_" + ocg.GetName() + ".png";
Console.WriteLine(fname);
pdfdraw.Export(page, fname);
}
}
// Now draw content that is not part of any layer...
ctx.SetNonOCDrawing(true);
ctx.SetOCDrawMode(Context.OCDrawMode.e_NoOC);
pdfdraw.Export(page, output_path + "pdf_layers_non_oc.png");
Console.WriteLine("Done.");
}
}
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}