static void Main(string[] args)
{
if (args == null || args.Length < 2)
{
System.Console.WriteLine("Usage: " + AppDomain.CurrentDomain.FriendlyName + " <original PDF filename> <watermark text> [new PDF filename]" + Environment.NewLine +
" For example: " + AppDomain.CurrentDomain.FriendlyName + " myDoc.pdf \"This is a Draft\"");
}
else
{
string origName = args[0];
string watermarkTxt = args[1];
if (!System.IO.File.Exists(origName))
{
System.Console.WriteLine("Error: cannot find the original PDF file(" + origName + "). Please correct the filename or the path and try again.");
}
else
{
PDDocument origDoc = PDDocument.load(new java.io.File(origName)); // NOTE: PDDocument.load() only takes java.io.File, not System.IO.File from C#.Net
PDPageTree allPages = origDoc.getPages();
PDFont font = PDType1Font.HELVETICA_BOLD;
for (int i = 0, len = allPages.getCount(); i < len; ++i)
{
PDPage pg = (PDPage)allPages.get(i);
addWatermarkText(origDoc, pg, font, "This is a draft!!!");
}
origDoc.save("watermarked_" + origName);
origDoc.close();
}
}
}
/// <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 static PDDocument AddTrialStampIfNecessary(PDDocument pdfFile, bool addJavaScript)
{
if (PDFHelper.AddStamp)
{
PDFont pDFont = PDTrueTypeFont.load(pdfFile, new java.io.File("C:\\Windows\\Fonts\\Arial.ttf"), new WinAnsiEncoding());
foreach (PDPage page in pdfFile.getPages())
{
PDPageContentStream pDPageContentStream = new PDPageContentStream(pdfFile, page, PDPageContentStream.AppendMode.APPEND, true);
pDPageContentStream.setFont(pDFont, 14f);
pDPageContentStream.beginText();
pDPageContentStream.newLineAtOffset(100f, page.getMediaBox().getHeight() - 100f);
pDPageContentStream.showText("Created with a trial copy of Aquaforest PDF Toolkit");
pDPageContentStream.endText();
pDPageContentStream.close();
}
}
return(pdfFile);
}
private void EmbedFonts(bool doType1)
{
bool flag = false;
PDTrueTypeFont pDTrueTypeFont = null;
List <PDFAFontsEmbedded> pDFAFontsEmbeddeds = new List <PDFAFontsEmbedded>();
foreach (PDPage page in this.doc.getPages())
{
PDResources resources = page.getResources();
Iterator iterator = resources.getFontNames().iterator();
while (iterator.hasNext())
{
PDFont font = null;
try
{
font = resources.getFont((COSName)iterator.next());
PDFontDescriptor fontDescriptor = font.getFontDescriptor();
if (font.isEmbedded())
{
continue;
}
else if (font.getSubType().ToLower().Contains("type1") & doType1)
{
string fontFile = this.GetFontFile(font.getName());
if (fontFile != null)
{
if ((
from t in pDFAFontsEmbeddeds
where t.FontName == fontFile
select t).Count <PDFAFontsEmbedded>() > 0)
{
(
from t in pDFAFontsEmbeddeds
where t.FontName == fontFile
select t.fontDecriptor).SingleOrDefault <PDFont>();
font.getCOSObject().setName(COSName.SUBTYPE, "TrueType");
}
else
{
InputStream fileInputStream = new FileInputStream(string.Concat("C:\\Windows\\Fonts\\", fontFile));
fontDescriptor.setFontFile(new PDStream(this.doc, fileInputStream));
PDFAFontsEmbedded pDFAFontsEmbedded = new PDFAFontsEmbedded()
{
FontName = fontFile
};
font.getCOSObject().setName(COSName.SUBTYPE, "TrueType");
pDFAFontsEmbedded.fontDecriptor = pDTrueTypeFont;
pDFAFontsEmbeddeds.Add(pDFAFontsEmbedded);
flag = true;
}
}
}
else if (font.getSubType().ToLower().Contains("true"))
{
string readableFontName = this.GetReadableFontName(font.getName());
string str = this.GetFontFile(readableFontName);
string str1 = string.Concat("C:\\Windows\\Fonts\\", str);
if (System.IO.File.Exists(str1))
{
if ((
from t in pDFAFontsEmbeddeds
where t.FontName == str
select t).Count <PDFAFontsEmbedded>() <= 0)
{
InputStream inputStream = new FileInputStream(str1);
fontDescriptor.setFontFile2(new PDStream(this.doc, inputStream));
PDFAFontsEmbedded pDFAFontsEmbedded1 = new PDFAFontsEmbedded()
{
FontName = str,
fontDecriptor = pDTrueTypeFont
};
pDFAFontsEmbeddeds.Add(pDFAFontsEmbedded1);
flag = true;
}
}
}
}
catch (Exception exception)
{
}
}
}
}
