/// <summary>
/// The below method is an example from https://svn.apache.org/viewvc/pdfbox/trunk/examples/src/main/java/org/apache/pdfbox/examples/util/AddWatermarkText.java?revision=1873147&view=markup
/// </summary>
/// <param name="doc"></param>
/// <param name="page"></param>
/// <param name="font"></param>
/// <param name="text"></param>
static void addWatermarkText(PDDocument doc, PDPage page, PDFont font, string text)
{
using (PDPageContentStream cs
= new PDPageContentStream(doc, page, PDPageContentStream.AppendMode.APPEND, true, true))
{
float fontHeight = 100; // arbitrary for short text
float width = page.getMediaBox().getWidth();
float height = page.getMediaBox().getHeight();
float stringWidth = font.getStringWidth(text) / 1000 * fontHeight;
float diagonalLength = (float)System.Math.Sqrt(width * width + height * height);
float angle = (float)System.Math.Atan2(height, width);
float x = (diagonalLength - stringWidth) / 2; // "horizontal" position in rotated world
float y = -fontHeight / 4; // 4 is a trial-and-error thing, this lowers the text a bit
cs.transform(Matrix.getRotateInstance(angle, 0, 0));
cs.setFont(font, fontHeight);
// cs.setRenderingMode(RenderingMode.STROKE) // for "hollow" effect
PDExtendedGraphicsState gs = new PDExtendedGraphicsState();
gs.setNonStrokingAlphaConstant(new Float(0.2f));
gs.setStrokingAlphaConstant(new Float(0.2f));
gs.setBlendMode(BlendMode.MULTIPLY);
gs.setLineWidth(new Float(3f));
cs.setGraphicsStateParameters(gs);
cs.setNonStrokingColor(Color.red);
cs.setStrokingColor(Color.red);
cs.beginText();
cs.newLineAtOffset(x, y);
cs.showText(text);
cs.endText();
}
}
internal string GetText(PDDocument pdfDocument, int pageNumber, bool format)
{
string text;
double num;
string str = "";
if (format)
{
try
{
PDFHelper.DisplayTrialPopupIfNecessary();
PDFTextStripperByArea pDFTextStripperByArea = new PDFTextStripperByArea();
pDFTextStripperByArea.setSortByPosition(true);
if (PDFHelper.AddStamp)
{
str = string.Concat(str, "You are using a trial license of PDF Toolkit, as a result only the first three pages would be extracted.");
}
PDPage page = pdfDocument.getPage(pageNumber - 1);
PDRectangle cropBox = page.getCropBox();
int rotation = page.getRotation();
if (cropBox == null)
{
cropBox = page.getMediaBox();
}
int num1 = 0;
int num2 = 0;
if (rotation % 180 != 0)
{
num = Math.Round((double)cropBox.getWidth());
num1 = int.Parse(num.ToString());
num = Math.Round((double)cropBox.getHeight());
num2 = int.Parse(num.ToString());
}
else
{
num = Math.Round((double)cropBox.getHeight());
num1 = int.Parse(num.ToString());
num = Math.Round((double)cropBox.getWidth());
num2 = int.Parse(num.ToString());
}
pDFTextStripperByArea.addRegion("class1", new java.awt.Rectangle(0, 0, num2, num1));
pDFTextStripperByArea.extractRegions(page);
str = string.Concat(str, pDFTextStripperByArea.getTextForRegion("class1"));
}
catch (Exception exception1)
{
Exception exception = exception1;
throw new PDFToolkitException(exception.Message, exception.InnerException);
}
text = str;
}
else
{
text = this.GetText(pdfDocument, pageNumber);
}
return(text);
}
internal void createPDFFromText(string pdfFile)
{
string str;
bool flag;
PDDocument pDDocument = new PDDocument();
PDFHelper.DisplayTrialPopupIfNecessary();
PDFHelper.CheckOutputFolder(Path.GetDirectoryName(pdfFile));
try
{
this.pdfFileName = pdfFile;
Reader fileReader = new FileReader(this.textFile);
int num = 40;
if (this.font == null)
{
this.font = PDFType1Font.TIMES_ROMAN;
}
float height = this.font.PDFBoxFont.getBoundingBox().getHeight() / 1000f;
PDRectangle lETTER = PDRectangle.LETTER;
if (this.isLandescape)
{
lETTER = new PDRectangle(lETTER.getHeight(), lETTER.getWidth());
}
height = height * this.fontSize * 1.05f;
string[] strArrays = System.IO.File.ReadAllLines(this.textFile);
PDPage pDPage = new PDPage(lETTER);
PDPageContentStream pDPageContentStream = null;
float single = -1f;
float width = pDPage.getMediaBox().getWidth() - (float)(2 * num);
bool flag1 = true;
string[] strArrays1 = strArrays;
for (int i = 0; i < (int)strArrays1.Length; i++)
{
string str1 = strArrays1[i];
flag1 = false;
string str2 = Regex.Replace(str1, "\\t|\\n|\\r", "");
string[] strArrays2 = str2.Replace("[\\n\\r]+$", "").Split(new char[] { ' ' });
int num1 = 0;
while (num1 < (int)strArrays2.Length)
{
StringBuilder stringBuilder = new StringBuilder();
float stringWidth = 0f;
bool flag2 = false;
do
{
string str3 = "";
int num2 = strArrays2[num1].IndexOf('\f');
if (num2 != -1)
{
flag2 = true;
str = strArrays2[num1].Substring(0, num2);
if (num2 < strArrays2[num1].Length)
{
str3 = strArrays2[num1].Substring(num2 + 1);
}
}
else
{
str = strArrays2[num1];
}
if ((str.Length > 0 ? true : !flag2))
{
stringBuilder.Append(str);
stringBuilder.Append(" ");
}
if ((!flag2 ? false : str3.Length != 0))
{
strArrays2[num1] = str3;
}
else
{
num1++;
}
if (!flag2)
{
if (num1 < (int)strArrays2.Length)
{
string str4 = strArrays2[num1];
num2 = str4.IndexOf('\f');
if (num2 != -1)
{
str4 = str4.Substring(0, num2);
}
string str5 = string.Concat(stringBuilder.ToString(), " ", str4);
try
{
stringWidth = this.font.PDFBoxFont.getStringWidth(str5) / 1000f * this.fontSize;
}
catch (Exception exception)
{
}
}
flag = (num1 >= (int)strArrays2.Length ? false : stringWidth < width);
}
else
{
break;
}
}while (flag);
if (single < (float)num)
{
pDPage = new PDPage(lETTER);
pDDocument.addPage(pDPage);
if (pDPageContentStream != null)
{
pDPageContentStream.endText();
pDPageContentStream.close();
}
pDPageContentStream = new PDPageContentStream(pDDocument, pDPage);
pDPageContentStream.setFont(this.font.PDFBoxFont, this.fontSize);
pDPageContentStream.beginText();
single = pDPage.getMediaBox().getHeight() - (float)num + height;
pDPageContentStream.newLineAtOffset((float)num, single);
}
if (pDPageContentStream == null)
{
throw new java.io.IOException("Error:Expected non-null content stream.");
}
pDPageContentStream.newLineAtOffset(0f, -height);
single = single - height;
try
{
pDPageContentStream.showText(stringBuilder.ToString());
if (flag2)
{
pDPage = new PDPage(lETTER);
pDDocument.addPage(pDPage);
pDPageContentStream.endText();
pDPageContentStream.close();
pDPageContentStream = new PDPageContentStream(pDDocument, pDPage);
pDPageContentStream.setFont(this.font.PDFBoxFont, this.fontSize);
pDPageContentStream.beginText();
single = pDPage.getMediaBox().getHeight() - (float)num + height;
pDPageContentStream.newLineAtOffset((float)num, single);
}
}
catch (Exception exception1)
{
}
}
}
if (flag1)
{
pDDocument.addPage(pDPage);
}
if (pDPageContentStream != null)
{
pDPageContentStream.endText();
pDPageContentStream.close();
}
if (PDFHelper.AddStamp)
{
pDDocument = PDFHelper.AddTrialStampIfNecessary(pDDocument);
}
try
{
pDDocument.save(pdfFile);
}
catch (Exception exception3)
{
Exception exception2 = exception3;
throw new PDFToolkitException(exception2.Message, exception2.InnerException);
}
}
catch (Exception exception5)
{
Exception exception4 = exception5;
if (pDDocument != null)
{
pDDocument.close();
}
throw exception4;
}
}
