private static void PrependAndAppendPageContent(string resultFileName)
{
string initialDocument = InputFileMultipageDocument;
string resultDocument = Path.Combine(ResultDirName, resultFileName);
using (PdfStreamWriter fileWriter = new PdfStreamWriter(File.OpenWrite(resultDocument)))
{
using (PdfFileSource fileSource = new PdfFileSource(File.OpenRead(initialDocument)))
{
RadFixedPage backgroundContentOwner = GenerateBackgroundImageContent(InputFileBackgroundImage);
RadFixedPage foregroundContentOwner = GenerateForegroundTextContent("WATERMARK");
foreach (PdfPageSource pageSource in fileSource.Pages)
{
using (PdfPageStreamWriter pageWriter = fileWriter.BeginPage(pageSource.Size, pageSource.Rotation))
{
using (pageWriter.SaveContentPosition())
{
double xCenteringTranslation = (pageSource.Size.Width - backgroundContentOwner.Size.Width) / 2;
double yCenteringTranslation = (pageSource.Size.Height - backgroundContentOwner.Size.Height) / 2;
pageWriter.ContentPosition.Translate(xCenteringTranslation, yCenteringTranslation);
pageWriter.WriteContent(backgroundContentOwner);
}
pageWriter.WriteContent(pageSource);
using (pageWriter.SaveContentPosition())
{
double xCenteringTranslation = (pageSource.Size.Width - foregroundContentOwner.Size.Width) / 2;
double yCenteringTranslation = (pageSource.Size.Height - foregroundContentOwner.Size.Height) / 2;
pageWriter.ContentPosition.Translate(xCenteringTranslation, yCenteringTranslation);
pageWriter.WriteContent(foregroundContentOwner);
}
}
}
}
}
}
