/// <summary>
//-----------------------------------------------------------------------------------
// This sample illustrates how to embed various raster image formats
// (e.g. TIFF, JPEG, JPEG2000, JBIG2, GIF, PNG, BMP, etc.) in a PDF document.
//-----------------------------------------------------------------------------------
/// </summary>
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 bld = new ElementBuilder()) // Used to build new Element objects
using (ElementWriter writer = new ElementWriter()) // Used to write Elements to the page
{
Page page = doc.PageCreate(); // Start a new page
writer.Begin(page); // Begin writing to this page
// ----------------------------------------------------------
// Embed a JPEG image to the output document.
Image img = Image.Create(doc, input_path + "peppers.jpg");
// You can also directly add any .NET Bitmap. The following commented-out code
// is equivalent to the above line:
// System.Drawing.Bitmap bmp;
// System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(input_path + "peppers.jpg");
// Image img = Image.Create(doc, bmp);
Element element = bld.CreateImage(img, 50, 500, img.GetImageWidth() / 2, img.GetImageHeight() / 2);
writer.WritePlacedElement(element);
// ----------------------------------------------------------
// Add a PNG image to the output file
img = Image.Create(doc, input_path + "butterfly.png");
element = bld.CreateImage(img, new Matrix2D(100, 0, 0, 100, 300, 500));
writer.WritePlacedElement(element);
// ----------------------------------------------------------
// Add a GIF image to the output file
img = Image.Create(doc, input_path + "pdfnet.gif");
element = bld.CreateImage(img, new Matrix2D(img.GetImageWidth(), 0, 0, img.GetImageHeight(), 50, 350));
writer.WritePlacedElement(element);
// ----------------------------------------------------------
// Add a TIFF image to the output file
img = Image.Create(doc, input_path + "grayscale.tif");
element = bld.CreateImage(img, new Matrix2D(img.GetImageWidth(), 0, 0, img.GetImageHeight(), 10, 50));
writer.WritePlacedElement(element);
writer.End(); // Save the page
doc.PagePushBack(page); // Add the page to the document page sequence
// ----------------------------------------------------------
// Add a BMP image to the output file
/*
* bmp = new System.Drawing.Bitmap(input_path + "pdftron.bmp");
* img = Image.Create(doc, bmp);
* element = bld.CreateImage(img, new Matrix2D(bmp.Width, 0, 0, bmp.Height, 255, 700));
* writer.WritePlacedElement(element);
*
* writer.End(); // Finish writing to the page
* doc.PagePushBack(page);
*/
// ----------------------------------------------------------
// Embed a monochrome TIFF. Compress the image using lossy JBIG2 filter.
page = doc.PageCreate(new pdftron.PDF.Rect(0, 0, 612, 794));
writer.Begin(page); // begin writing to this page
// Note: encoder hints can be used to select between different compression methods.
// For example to instruct PDFNet to compress a monochrome image using JBIG2 compression.
ObjSet hint_set = new ObjSet();
Obj enc = hint_set.CreateArray(); // Initialize encoder 'hint' parameter
enc.PushBackName("JBIG2");
enc.PushBackName("Lossy");
img = pdftron.PDF.Image.Create(doc, input_path + "multipage.tif", enc);
element = bld.CreateImage(img, new Matrix2D(612, 0, 0, 794, 0, 0));
writer.WritePlacedElement(element);
writer.End(); // Save the page
doc.PagePushBack(page); // Add the page to the document page sequence
// ----------------------------------------------------------
// Add a JPEG2000 (JP2) image to the output file
// Create a new page
page = doc.PageCreate();
writer.Begin(page); // Begin writing to the page
// Embed the image.
img = pdftron.PDF.Image.Create(doc, input_path + "palm.jp2");
// Position the image on the page.
element = bld.CreateImage(img, new Matrix2D(img.GetImageWidth(), 0, 0, img.GetImageHeight(), 96, 80));
writer.WritePlacedElement(element);
// Write 'JPEG2000 Sample' text string under the image.
writer.WriteElement(bld.CreateTextBegin(pdftron.PDF.Font.Create(doc, pdftron.PDF.Font.StandardType1Font.e_times_roman), 32));
element = bld.CreateTextRun("JPEG2000 Sample");
element.SetTextMatrix(1, 0, 0, 1, 190, 30);
writer.WriteElement(element);
writer.WriteElement(bld.CreateTextEnd());
writer.End(); // Finish writing to the page
doc.PagePushBack(page);
doc.Save(output_path + "addimage.pdf", SDFDoc.SaveOptions.e_linearized);
Console.WriteLine("Done. Result saved in addimage.pdf...");
}
}
catch (PDFNetException e)
{
Console.WriteLine(e.Message);
}
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main()
{
// Initialize PDFNet before calling any other PDFNet function.
PDFNet.Initialize();
string input_path = "../../TestFiles/";
string output_path = "../../TestFiles/Output/";
string input_filename = "US061222892-a.pdf";
PDFDoc pdf_doc = new PDFDoc(input_path + input_filename);
pdf_doc.InitSecurityHandler();
SDFDoc cos_doc = pdf_doc.GetSDFDoc();
int num_objs = cos_doc.XRefSize();
for (int i = 1; i < num_objs; ++i)
{
Obj obj = cos_doc.GetObj(i);
if (obj != null && !obj.IsFree() && obj.IsStream())
{
// Process only images
DictIterator itr = obj.Find("Subtype");
if (!itr.HasNext() || itr.Value().GetName() != "Image")
{
continue;
}
pdftron.PDF.Image input_image = new pdftron.PDF.Image(obj);
pdftron.PDF.Image new_image = null;
// Process only gray-scale images
if (input_image.GetComponentNum() != 1)
{
continue;
}
int bpc = input_image.GetBitsPerComponent();
if (bpc != 1) // Recompress 1 BPC images
{
continue;
}
// Skip images that are already compressed using JBIG2
itr = obj.Find("Filter");
if (itr.HasNext() && itr.Value().IsName() &&
itr.Value().GetName() == "JBIG2Decode")
{
continue;
}
FilterReader reader = new FilterReader(obj.GetDecodedStream());
ObjSet hint_set = new ObjSet();
Obj hint = hint_set.CreateArray();
hint.PushBackName("JBIG2");
hint.PushBackName("Lossless");
hint.PushBackName("Threshold");
hint.PushBackNumber(0.4);
hint.PushBackName("SharePages");
hint.PushBackNumber(10000);
new_image = pdftron.PDF.Image.Create(
cos_doc,
reader,
input_image.GetImageWidth(),
input_image.GetImageHeight(),
1,
ColorSpace.CreateDeviceGray(),
hint // A hint to image encoder to use JBIG2 compression
);
Obj new_img_obj = new_image.GetSDFObj();
// Copy any important entries from the image dictionary
itr = obj.Find("ImageMask");
if (itr.HasNext())
{
new_img_obj.Put("ImageMask", itr.Value());
}
itr = obj.Find("Mask");
if (itr.HasNext())
{
new_img_obj.Put("Mask", itr.Value());
}
cos_doc.Swap(i, new_image.GetSDFObj().GetObjNum());
}
}
pdf_doc.Save(output_path + "US061222892_JBIG2.pdf", SDFDoc.SaveOptions.e_remove_unused);
pdf_doc.Close();
}