private byte[] CreatePdfWithNegativeCharSpacing(String str1, float charSpacing, String str2)
{
MemoryStream baos = new MemoryStream();
Document doc = new Document();
PdfWriter writer = PdfWriter.GetInstance(doc, baos);
writer.CompressionLevel = 0;
doc.Open();
PdfContentByte canvas = writer.DirectContent;
canvas.BeginText();
canvas.SetFontAndSize(BaseFont.CreateFont(), 12);
canvas.MoveText(45, doc.PageSize.Height - 45);
PdfTextArray ta = new PdfTextArray();
ta.Add(str1);
ta.Add(charSpacing);
ta.Add(str2);
canvas.ShowText(ta);
canvas.EndText();
doc.Close();
return(baos.ToArray());
}
/// <exception cref="System.Exception"/>
private static byte[] CreatePdfWithArrayText(String text1, String text2, int spaceInPoints)
{
PdfTextArray textArray = new PdfTextArray();
textArray.Add(new PdfString(text1));
textArray.Add(-spaceInPoints);
textArray.Add(new PdfString(text2));
return(CreatePdfWithArrayText(textArray));
}
/// <exception cref="System.Exception"/>
private byte[] CreatePdfWithNegativeCharSpacing(String str1, float charSpacing, String str2)
{
MemoryStream baos = new MemoryStream();
PdfDocument pdfDocument = new PdfDocument(new PdfWriter(baos).SetCompressionLevel(0));
PdfCanvas canvas = new PdfCanvas(pdfDocument.AddNewPage());
canvas.BeginText();
canvas.SetFontAndSize(PdfFontFactory.CreateFont(StandardFonts.HELVETICA), 12);
canvas.MoveText(45, pdfDocument.GetDefaultPageSize().GetHeight() - 45);
PdfTextArray ta = new PdfTextArray();
ta.Add(new PdfString(str1));
ta.Add(charSpacing);
ta.Add(new PdfString(str2));
canvas.ShowText(ta);
canvas.EndText();
pdfDocument.Close();
return(baos.ToArray());
}
/// <summary>Filter a TextRenderInfo object</summary>
/// <param name="text">the TextRenderInfo to be filtered</param>
public virtual PdfCleanUpFilter.FilterResult <PdfArray> FilterText(TextRenderInfo text)
{
PdfTextArray textArray = new PdfTextArray();
if (IsTextNotToBeCleaned(text))
{
return(new PdfCleanUpFilter.FilterResult <PdfArray>(false, new PdfArray(text.GetPdfString())));
}
foreach (TextRenderInfo ri in text.GetCharacterRenderInfos())
{
if (IsTextNotToBeCleaned(ri))
{
textArray.Add(ri.GetPdfString());
}
else
{
textArray.Add(new PdfNumber(-ri.GetUnscaledWidth() * 1000f / (text.GetFontSize() * text.GetHorizontalScaling
() / 100)));
}
}
return(new PdfCleanUpFilter.FilterResult <PdfArray>(true, textArray));
}
private void WriteText(String @operator, IList <PdfObject> operands, PdfArray cleanedText, PdfCanvas canvas
)
{
CanvasGraphicsState canvasGs = canvas.GetGraphicsState();
bool newLineShowText = "'".Equals(@operator) || "\"".Equals(@operator);
if (newLineShowText)
{
if (canvasGs.GetLeading() != currLeading)
{
canvas.SetLeading((float)currLeading);
}
// after new line operator, removed text shift doesn't matter
removedTextShift = null;
}
PdfTextArray tjShiftArray = null;
if (removedTextShift != null)
{
float tjShift = (float)removedTextShift * 1000 / (canvasGs.GetFontSize() * canvasGs.GetHorizontalScaling()
/ 100);
tjShiftArray = new PdfTextArray();
tjShiftArray.Add(new PdfNumber(tjShift));
}
if (cleanedText != null)
{
if (newLineShowText)
{
// char spacing and word spacing are set via writeNotAppliedTextStateParams() method
canvas.NewlineText();
}
if (removedTextShift != null)
{
tjShiftArray.AddAll(cleanedText);
cleanedText = tjShiftArray;
}
canvas.ShowText(cleanedText);
}
else
{
if (removedTextShift != null)
{
canvas.ShowText(tjShiftArray);
}
PdfCleanUpProcessor.WriteOperands(canvas, operands);
}
}
private byte[] CreatePdfWithLittleFontSize()
{
MemoryStream baos = new MemoryStream();
Document doc = new Document();
PdfWriter writer = PdfWriter.GetInstance(doc, baos);
doc.Open();
BaseFont font = BaseFont.CreateFont();
PdfContentByte canvas = writer.DirectContent;
canvas.BeginText();
canvas.SetFontAndSize(font, 0.2f);
canvas.MoveText(45, doc.PageSize.Height - 45);
PdfTextArray textArray = new PdfTextArray();
textArray.Add("P");
textArray.Add("r");
textArray.Add("e");
textArray.Add("f");
textArray.Add("a");
textArray.Add("c");
textArray.Add("e");
textArray.Add(" ");
canvas.ShowText(textArray);
canvas.SetFontAndSize(font, 10);
canvas.ShowText(textArray);
canvas.EndText();
doc.Close();
byte[] pdfBytes = baos.ToArray();
return(pdfBytes);
}
public virtual void TestWordSpacingCausedByExplicitGlyphPositioning2()
{
PdfTextArray textArray = new PdfTextArray();
textArray.Add(new PdfString("S"));
textArray.Add(3.2f);
textArray.Add(new PdfString("an"));
textArray.Add(-255);
textArray.Add(new PdfString("D"));
textArray.Add(13);
textArray.Add(new PdfString("i"));
textArray.Add(8.3f);
textArray.Add(new PdfString("e"));
textArray.Add(-10.1f);
textArray.Add(new PdfString("g"));
textArray.Add(1.6f);
textArray.Add(new PdfString("o"));
textArray.Add(-247.5f);
textArray.Add(new PdfString("C"));
textArray.Add(2.4f);
textArray.Add(new PdfString("h"));
textArray.Add(5.8f);
textArray.Add(new PdfString("ap"));
textArray.Add(3);
textArray.Add(new PdfString("t"));
textArray.Add(10.7f);
textArray.Add(new PdfString("er"));
byte[] bytes = CreatePdfWithArrayText(textArray);
NUnit.Framework.Assert.AreEqual("San Diego Chapter", PdfTextExtractor.GetTextFromPage(new PdfDocument(new
PdfReader(new MemoryStream(bytes))).GetPage(1), CreateRenderListenerForTest()));
}
private byte[] CreatePdfWithFontSpacingEqualsCharSpacing()
{
MemoryStream baos = new MemoryStream();
Document doc = new Document();
PdfWriter writer = PdfWriter.GetInstance(doc, baos);
doc.Open();
BaseFont font = BaseFont.CreateFont();
int fontSize = 12;
float charSpace = font.GetWidth(' ') / 1000.0f;
PdfContentByte canvas = writer.DirectContent;
canvas.BeginText();
canvas.SetFontAndSize(font, fontSize);
canvas.MoveText(45, doc.PageSize.Height - 45);
canvas.SetCharacterSpacing(-charSpace * fontSize);
PdfTextArray textArray = new PdfTextArray();
textArray.Add("P");
textArray.Add(-226.2f);
textArray.Add("r");
textArray.Add(-231.8f);
textArray.Add("e");
textArray.Add(-230.8f);
textArray.Add("f");
textArray.Add(-238);
textArray.Add("a");
textArray.Add(-238.9f);
textArray.Add("c");
textArray.Add(-228.9f);
textArray.Add("e");
canvas.ShowText(textArray);
canvas.EndText();
doc.Close();
byte[] pdfBytes = baos.ToArray();
return(pdfBytes);
}
/// <exception cref="System.IO.IOException"/>
private byte[] CreatePdfWithLittleFontSize()
{
MemoryStream byteStream = new MemoryStream();
PdfDocument document = new PdfDocument(new PdfWriter(byteStream));
PdfPage page1 = document.AddNewPage();
PdfCanvas canvas = new PdfCanvas(page1);
PdfTextArray textArray = new PdfTextArray();
PdfFont font = PdfFontFactory.CreateFont();
textArray.Add(font.ConvertToBytes("P"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("r"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("e"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("f"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("a"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("c"));
textArray.Add(1);
textArray.Add(font.ConvertToBytes("e"));
canvas.SaveState().BeginText().SetFontAndSize(font, 0.2f).ShowText(textArray).EndText().RestoreState();
canvas.Release();
document.Close();
return(byteStream.ToArray());
}
/// <exception cref="System.IO.IOException"/>
private byte[] CreatePdfWithFontSpacingEqualsCharSpacing()
{
MemoryStream byteStream = new MemoryStream();
PdfDocument document = new PdfDocument(new PdfWriter(byteStream));
PdfPage page1 = document.AddNewPage();
PdfCanvas canvas = new PdfCanvas(page1);
PdfFont font = PdfFontFactory.CreateFont();
PdfTextArray textArray = new PdfTextArray();
textArray.Add(font.ConvertToBytes("P"));
textArray.Add(-226.2f);
textArray.Add(font.ConvertToBytes("r"));
textArray.Add(-231.8f);
textArray.Add(font.ConvertToBytes("e"));
textArray.Add(-230.8f);
textArray.Add(font.ConvertToBytes("f"));
textArray.Add(-238);
textArray.Add(font.ConvertToBytes("a"));
textArray.Add(-238.9f);
textArray.Add(font.ConvertToBytes("c"));
textArray.Add(-228.9f);
textArray.Add(font.ConvertToBytes("e"));
float charSpace = font.GetWidth(' ', 12);
canvas.SaveState().BeginText().SetFontAndSize(font, 12).SetCharacterSpacing(-charSpace).ShowText(textArray
).EndText().RestoreState();
canvas.Release();
document.Close();
return(byteStream.ToArray());
}
// ===========================================================================
public void Write(Stream stream)
{
// step 1
using (Document document = new Document()) {
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, stream);
// step 3
document.Open();
// step 4
PdfContentByte canvas = writer.DirectContent;
String text = "AWAY again";
BaseFont bf = BaseFont.CreateFont();
canvas.BeginText();
// line 1
canvas.SetFontAndSize(bf, 16);
canvas.MoveText(36, 806);
canvas.MoveTextWithLeading(0, -24);
canvas.ShowText(text);
// line 2
canvas.SetWordSpacing(20);
canvas.NewlineShowText(text);
// line 3
canvas.SetCharacterSpacing(10);
canvas.NewlineShowText(text);
canvas.SetWordSpacing(0);
canvas.SetCharacterSpacing(0);
// line 4
canvas.SetHorizontalScaling(50);
canvas.NewlineShowText(text);
canvas.SetHorizontalScaling(100);
// line 5
canvas.NewlineShowText(text);
canvas.SetTextRise(15);
canvas.SetFontAndSize(bf, 12);
canvas.SetColorFill(BaseColor.RED);
canvas.ShowText("2");
canvas.SetColorFill(GrayColor.GRAYBLACK);
// line 6
canvas.SetLeading(56);
canvas.NewlineShowText("Changing the leading: " + text);
canvas.SetLeading(24);
canvas.NewlineText();
// line 7
PdfTextArray array = new PdfTextArray("A");
array.Add(120);
array.Add("W");
array.Add(120);
array.Add("A");
array.Add(95);
array.Add("Y again");
canvas.ShowText(array);
canvas.EndText();
canvas.SetColorFill(BaseColor.BLUE);
canvas.BeginText();
canvas.SetTextMatrix(360, 770);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 730);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_STROKE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 690);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 650);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_INVISIBLE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
PdfTemplate template = canvas.CreateTemplate(200, 36);
template.SetLineWidth(2);
for (int i = 0; i < 6; i++)
{
template.MoveTo(0, i * 6);
template.LineTo(200, i * 6);
}
template.Stroke();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 610);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 610);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 570);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_STROKE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 570);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 530);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 530);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 490);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 490);
canvas.RestoreState();
}
}