Hi,
I want to determine if the current PDF is colored, B&W or Gray-scale. The following code snippet works fine for color PDF and Gray scale PDFs. When i test it with B&W PDF files it display that current PDF is gray scale.
Document pdfDocument = new Document(file);
// itterate through all the page of PDF file
string filename = Path.GetFileName(file);
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
// get the color type information for particular PDF page
Aspose.Pdf.ColorType pageColorType = pdfDocument.Pages[pageCount].ColorType;
switch (pageColorType)
{
case ColorType.BlackAndWhite:
Console.WriteLine(“File " + filename + " Page # - " + pageCount + " is Black and white…”);
break;
case ColorType.Grayscale:
Console.WriteLine(“File " + filename + " Page # - " + pageCount + " is Gray Scale…”);
break;
case ColorType.Rgb:
Console.WriteLine(“File " + filename + " Page # - " + pageCount + " is RGB…”);
break;
case ColorType.Undefined:
Console.WriteLine(“File " + filename + " Page # - " + pageCount + " Color is undefined…”);
break;
}
}
Need your help in this regard. I am also attaching the B&W PDF “200dpi.pdf” .