//This function will find every image in the document and add text if
//possible
static void AddTextToImages(Document doc, Content content, OCREngine engine)
{
for (int index = 0; index < content.NumElements; index++)
{
Element e = content.GetElement(index);
if (e is Datalogics.PDFL.Image)
{
//PlaceTextUnder creates a form with the image and the generated text
//under the image. The original image in the page is then replaced by
//by the form.
Form form = engine.PlaceTextUnder((Image)e, doc);
content.RemoveElement(index);
content.AddElement(form, index - 1);
}
else if (e is Container)
{
AddTextToImages(doc, (e as Container).Content, engine);
}
else if (e is Group)
{
AddTextToImages(doc, (e as Group).Content, engine);
}
else if (e is Form)
{
AddTextToImages(doc, (e as Form).Content, engine);
}
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../Indexed-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
ColorSpace baseCS = ColorSpace.DeviceRGB;
List <Int32> lookup = new List <Int32>();
int[] lowhi = { 0, 255 };
foreach (int r in lowhi)
{
foreach (int g in lowhi)
{
foreach (int b in lowhi)
{
lookup.Add(r);
lookup.Add(g);
lookup.Add(b);
}
}
}
IndexedColorSpace cs = new IndexedColorSpace(baseCS, 7, lookup);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 4.0 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../CalRGB-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
// a CalRGB color space for the CCIR XA/11-recommended D65
// white point with 1.8 gammas and Sony Trinitron phosphor
// chromaticities
//
// Plus a dummy value for testing the black point
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
Double[] gamma = { 1.8, 1.8, 1.8 };
Double[] matrix = { 0.4497, 0.2446, 0.0252, 0.3163, 0.6720, 0.1412, 0.1845, 0.0833, 0.9227 };
ColorSpace cs = new CalRGBColorSpace(whitePoint, blackPoint, gamma, matrix);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 0.3, 0.7, 0.3 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void ResampleImages(Content content)
{
int i = 0;
while (i < content.NumElements)
{
Element e = content.GetElement(i);
Console.WriteLine(i + " / " + content.NumElements + " = " + e.GetType());
if (e is Image)
{
Image img = (Image)e;
try
{
Image newimg = img.ChangeResolution(400);
Console.WriteLine("Replacing an image...");
content.AddElement(newimg, i);
content.RemoveElement(i);
Console.WriteLine("Replaced.");
numreplaced++;
}
catch (ApplicationException ex)
{
Console.WriteLine(ex.Message);
}
}
else if (e is Container)
{
Console.WriteLine("Recursing through a Container");
ResampleImages((e as Container).Content);
}
else if (e is Group)
{
Console.WriteLine("Recursing through a Group");
ResampleImages((e as Group).Content);
}
else if (e is Form)
{
Console.WriteLine("Recursing through a Form");
Content formcontent = (e as Form).Content;
ResampleImages(formcontent);
(e as Form).Content = formcontent;
}
i++;
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../Separation-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
ColorSpace alternate = ColorSpace.DeviceRGB;
Double[] domain = { 0.0, 1.0 };
int nOutputs = 3;
Double[] range = { 0.0, 1.0, 0.0, 1.0, 0.0, 1.0 };
Double[] C0 = { 0.0, 0.0, 0.0 };
Double[] C1 = { 1.0, 0.0, 0.0 };
Function tintTransform = new ExponentialFunction(domain, nOutputs, C0, C1, 1.0);
tintTransform.Range = range;
ColorSpace cs = new SeparationColorSpace("DLColor", alternate, tintTransform);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 1.0 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../Lab-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
// CIE 1976 L*a*b* space with the CCIR XA/11-recommended D65
// white point. The a* and b* components, although
// theoretically unbounded, are defined to lie in the useful
// range -128 to +127
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
Double[] range = { -128.0, 127.0, -128.0, 127.0 };
ColorSpace cs = new LabColorSpace(whitePoint, blackPoint, range);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 55, -54, 55 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sInput = Library.ResourceDirectory + "Sample_Input/sRGB_IEC61966-2-1_noBPC.icc";
String sOutput = "../ICCBased-out.pdf";
if (args.Length > 0)
{
sInput = args[0];
}
if (args.Length > 1)
{
sOutput = args[1];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
FileStream stream = new FileStream(sInput, FileMode.Open);
PDFStream pdfStream = new PDFStream(stream, doc, null, null);
ColorSpace cs = new ICCBasedColorSpace(pdfStream, 3);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 1.0, 0.0, 0.0 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../CalGray-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
// a space consisting of the Y dimension of the CIE 1931 XYZ
// space with the CCIR XA/11-recommended D65 white point and
// opto-electronic transfer function.
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
double gamma = 2.2222;
ColorSpace cs = new CalGrayColorSpace(whitePoint, blackPoint, gamma);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 0.5 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
using (Library lib = new Library())
{
String sOutput = "../DeviceN-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
ColorSpace alternate = ColorSpace.DeviceRGB;
Double[] domain = { 0.0, 1.0, 0.0, 1.0 };
Double[] range = { 0.0, 1.0, 0.0, 1.0, 0.0, 1.0 };
string code = "{ 0 exch }";
Function tintTransform = new PostScriptCalculatorFunction(domain, range, code);
ColorSpace cs = new DeviceNColorSpace(new string[] { "DLRed", "DLBlue" }, alternate, tintTransform);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 0.75, 0.75 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sOutput = "Lab-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!System.IO.Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
// CIE 1976 L*a*b* space with the CCIR XA/11-recommended D65
// white point. The a* and b* components, although
// theoretically unbounded, are defined to lie in the useful
// range -128 to +127
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
Double[] range = { -128.0, 127.0, -128.0, 127.0 };
ColorSpace cs = new LabColorSpace(whitePoint, blackPoint, range);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new Double[] { 55, -54, 55 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sOutput = "CalRGB-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!System.IO.Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
// a CalRGB color space for the CCIR XA/11-recommended D65
// white point with 1.8 gammas and Sony Trinitron phosphor
// chromaticities
//
// Plus a dummy value for testing the black point
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
Double[] gamma = { 1.8, 1.8, 1.8 };
Double[] matrix = { 0.4497, 0.2446, 0.0252, 0.3163, 0.6720, 0.1412, 0.1845, 0.0833, 0.9227 };
ColorSpace cs = new CalRGBColorSpace(whitePoint, blackPoint, gamma, matrix);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new[] { 0.3, 0.7, 0.3 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sInput = Library.ResourceDirectory + "Sample_Input/sRGB_IEC61966-2-1_noBPC.icc";
String sOutput = "ICCBased-out.pdf";
if (args.Length > 0)
{
sInput = args[0];
}
if (args.Length > 1)
{
sOutput = args[1];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
FileStream stream = new FileStream(sInput, FileMode.Open);
PDFStream pdfStream = new PDFStream(stream, doc, null, null);
ColorSpace cs = new ICCBasedColorSpace(pdfStream, 3);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new[] { 1.0, 0.0, 0.0 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sOutput = "Indexed-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!System.IO.Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
ColorSpace baseCS = ColorSpace.DeviceRGB;
List <Int32> lookup = new List <Int32>();
int[] lowhi = { 0, 255 };
foreach (int r in lowhi)
{
foreach (int g in lowhi)
{
foreach (int b in lowhi)
{
lookup.Add(r);
lookup.Add(g);
lookup.Add(b);
}
}
}
IndexedColorSpace cs = new IndexedColorSpace(baseCS, 7, lookup);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new[] { 4.0 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
Console.WriteLine("Clips Sample:");
using (Library lib = new Library())
{
Console.WriteLine("Initialized the library.");
String sOutput = "../Clips-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Output file: " + sOutput);
// Create a new document and blank first page
Document doc = new Document();
Rect rect = new Rect(0, 0, 612, 792);
Page page = doc.CreatePage(Document.BeforeFirstPage, rect);
Console.WriteLine("Created new document and first page.");
// Create a new path, set up its graphic state and PaintOp
Path path = new Path();
GraphicState gs = new GraphicState();
Color color = new Color(0.0, 0.0, 0.0);
gs.FillColor = color;
path.GraphicState = gs;
path.PaintOp = PathPaintOpFlags.Fill;
// Add a rectangle to the path
Point point = new Point(100, 500);
path.AddRect(point, 300, 200);
Console.WriteLine("Created new path and added rectangle to it.");
// Add a curve to the path too so we have something
// interesting to look at after clipping
Point linePoint1 = new Point(400, 450);
Point linePoint2 = new Point(350, 300);
path.AddCurveV(linePoint1, linePoint2);
Console.WriteLine("Added curve to the path.");
// Add the path to the page in the document
Content content = page.Content;
content.AddElement(path);
Console.WriteLine("Added path to page in document.");
// Create a new path and add a rectangle to it
Path clipPath = new Path();
point = new Point(50, 300);
clipPath.AddRect(point, 300, 250);
Console.WriteLine("Created clipping path and added rectangle to it.");
// Create a new clip and add the new path to it and then add
// this new clip to the original path as its Clip property
Clip clip = new Clip();
clip.AddElement(clipPath);
path.Clip = clip;
Console.WriteLine("Created new clip, assigned clipping path to it, and added new clip to original path.");
// Update the page's content and save the file with clipping
page.UpdateContent();
doc.Save(SaveFlags.Full, sOutput);
// Kill the doc object
doc.Dispose();
Console.WriteLine("Killed document object.");
}
}
static void Main(string[] args)
{
Console.WriteLine("AddTextToImage Sample:");
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
Console.WriteLine("Initialized the library.");
String sInput = Library.ResourceDirectory + "Sample_Input/text_as_image.jpg";
String sOutput = "AddTextToImage-out.pdf";
if (args.Length > 0)
{
sInput = args[0];
}
if (args.Length > 1)
{
sOutput = args[1];
}
Console.WriteLine("Input file: " + sInput);
Console.WriteLine("Writing output to: " + sOutput);
OCRParams ocrParams = new OCRParams();
//The OCRParams.Languages parameter controls which languages the OCR engine attempts
//to detect. By default the OCR engine searches for English.
List <LanguageSetting> langList = new List <LanguageSetting>();
LanguageSetting languageOne = new LanguageSetting(Language.English, false);
langList.Add(languageOne);
//You could add additional languages for the OCR engine to detect by adding
//more entries to the LanguageSetting list.
//LanguageSetting languageTwo = new LanguageSetting(Language.Japanese, false);
//langList.Add(languageTwo);
ocrParams.Languages = langList;
// If your image resolution is not 300 dpi, specify it here. Specifying a
// correct resolution gives better results for OCR, especially with
// automatic image preprocessing.
// ocrParams.Resolution = 600;
using (OCREngine ocrEngine = new OCREngine(ocrParams))
{
//Create a document object
using (Document doc = new Document())
{
using (Image newimage = new Image(sInput, doc))
{
// Create a PDF page which is the size of the image.
// Matrix.A and Matrix.D fields, respectively.
// There are 72 PDF user space units in one inch.
Rect pageRect = new Rect(0, 0, newimage.Matrix.A, newimage.Matrix.D);
using (Page docpage = doc.CreatePage(Document.BeforeFirstPage, pageRect))
{
docpage.Content.AddElement(newimage);
docpage.UpdateContent();
}
}
using (Page page = doc.GetPage(0))
{
Content content = page.Content;
Element elem = content.GetElement(0);
Image image = (Image)elem;
//PlaceTextUnder creates a form with the image and the generated text
//under the image. The original image in the page is then replaced by
//by the form.
Form form = ocrEngine.PlaceTextUnder(image, doc);
content.RemoveElement(0);
content.AddElement(form, Content.BeforeFirst);
page.UpdateContent();
}
doc.Save(SaveFlags.Full, sOutput);
}
}
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sOutput = "CalGray-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!System.IO.Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
// a space consisting of the Y dimension of the CIE 1931 XYZ
// space with the CCIR XA/11-recommended D65 white point and
// opto-electronic transfer function.
Double[] whitePoint = { 0.9505, 1.0000, 1.0890 };
Double[] blackPoint = { 0.0, 0.0, 0.0 };
double gamma = 2.2222;
ColorSpace cs = new CalGrayColorSpace(whitePoint, blackPoint, gamma);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new[] { 0.5 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
static void Main(string[] args)
{
Console.WriteLine("AddTextToImage Sample:");
using (Library lib = new Library())
{
Console.WriteLine("Initialized the library.");
String sInput = Library.ResourceDirectory + "Sample_Input/text_as_image.jpg";
String sOutput = "../AddTextToImage-out.pdf";
if (args.Length > 0)
{
sInput = args[0];
}
if (args.Length > 1)
{
sOutput = args[1];
}
Console.WriteLine("Input file: " + sInput);
Console.WriteLine("Writing output to: " + sOutput);
OCRParams ocrParams = new OCRParams();
// Setting the segmentation mode to AUTOMATIC lets the OCR engine
// choose how to segment the page for text detection.
ocrParams.PageSegmentationMode = PageSegmentationMode.Automatic;
// This tells the selected engine to improve accuracy at the expense
// of increased run time. For Tesseract 3, it runs two different
// algorithms, and chooses the one that has the most confidence.
ocrParams.Performance = Performance.BestAccuracy;
using (OCREngine ocrEngine = new OCREngine(ocrParams))
{
//Create a document object
using (Document doc = new Document())
{
using (Image newimage = new Image(sInput, doc))
{
// Create a PDF page which is the size of the image.
// Matrix.A and Matrix.D fields, respectively.
// There are 72 PDF user space units in one inch.
Rect pageRect = new Rect(0, 0, newimage.Matrix.A, newimage.Matrix.D);
using (Page docpage = doc.CreatePage(Document.BeforeFirstPage, pageRect))
{
docpage.Content.AddElement(newimage);
docpage.UpdateContent();
}
}
using (Page page = doc.GetPage(0))
{
Content content = page.Content;
Element elem = content.GetElement(0);
Image image = (Image)elem;
//PlaceTextUnder creates a form with the image and the generated text
//under the image. The original image in the page is then replaced by
//by the form.
Form form = ocrEngine.PlaceTextUnder(image, doc);
content.RemoveElement(0);
content.AddElement(form, -1);
page.UpdateContent();
}
doc.Save(SaveFlags.Full, sOutput);
}
}
}
}
static void Main(string[] args)
{
// ReSharper disable once UnusedVariable
using (Library lib = new Library())
{
String sOutput = "DeviceN-out.pdf";
if (args.Length > 0)
{
sOutput = args[0];
}
Console.WriteLine("Writing to output " + sOutput);
Document doc = new Document();
Page page = doc.CreatePage(Document.BeforeFirstPage, new Rect(0, 0, 5 * 72, 4 * 72));
Content content = page.Content;
Font font;
try
{
font = new Font("Times-Roman", FontCreateFlags.Embedded | FontCreateFlags.Subset);
}
catch (ApplicationException ex)
{
if (ex.Message.Equals("The specified font could not be found.") &&
System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices
.OSPlatform.Linux) &&
!System.IO.Directory.Exists("/usr/share/fonts/msttcore/"))
{
Console.WriteLine("Please install Microsoft Core Fonts on Linux first.");
return;
}
throw;
}
ColorSpace alternate = ColorSpace.DeviceRGB;
Double[] domain = { 0.0, 1.0, 0.0, 1.0 };
Double[] range = { 0.0, 1.0, 0.0, 1.0, 0.0, 1.0 };
string code = "{ 0 exch }";
Function tintTransform = new PostScriptCalculatorFunction(domain, range, code);
ColorSpace cs = new DeviceNColorSpace(new[] { "DLRed", "DLBlue" }, alternate, tintTransform);
GraphicState gs = new GraphicState();
gs.FillColor = new Color(cs, new[] { 0.75, 0.75 });
Matrix textMatrix = new Matrix(24, 0, 0, 24, // Set font width and height to 24 point size
1 * 72, 2 * 72); // x, y coordinate on page, 1" x 2"
TextRun textRun = new TextRun("Hello World!", font, gs, new TextState(), textMatrix);
Text text = new Text();
text.AddRun(textRun);
content.AddElement(text);
page.UpdateContent();
doc.EmbedFonts();
doc.Save(SaveFlags.Full, sOutput);
}
}
