private static void WatermarkFile(PDFDoc doc, WaterMarkInfo watermarkInfo)
{
using (var stamp = new Stamper(Stamper.SizeType.e_relative_scale, 1, 1))
{
doc.InitSecurityHandler();
stamp.SetAlignment(Stamper.HorizontalAlignment.e_horizontal_center, Stamper.VerticalAlignment.e_vertical_center);
stamp.SetFontColor(new ColorPt(0, 0, 0)); // set text color to red
stamp.SetOpacity(0.1);
stamp.SetRotation(-67);
stamp.ShowsOnPrint(true);
stamp.ShowsOnScreen(true);
stamp.SetAsBackground(false);
stamp.StampText(doc, watermarkInfo.CustomMessage + "\n"
+ watermarkInfo.UserIPAddress,
new PageSet(1, doc.GetPageCount()));
}
}
public FileStreamWithPdftron(string pdfFilePath, FileItemStreamType streamType, WaterMarkInfo watermarkInfo)
{
var tempFilePath = string.Empty;
try
{
tempFilePath = Path.GetTempFileName();
pdftron.PDFNet.Initialize(Properties.Settings.Default.PDFTronLicense);
using (var doc = new PDFDoc(pdfFilePath))
{
if (null != watermarkInfo)
{
WatermarkFile(doc, watermarkInfo);
}
if (streamType == FileItemStreamType.Downloadable)
{
doc.Save(tempFilePath, SDFDoc.SaveOptions.e_compatibility);
}
else
{
Convert.ToXod(doc, tempFilePath);
}
doc.Close();
}
_wrappedStream = new FileStreamWithDelete(tempFilePath, FileMode.Open);
}
catch
{
if (File.Exists(tempFilePath))
{
File.Delete(tempFilePath);
}
throw;
}
finally
{
if (File.Exists(pdfFilePath))
{
File.Delete(pdfFilePath);
}
}
}
