Question

Is there any way, I can convert HTML Document (file not URL) to Image, or PDF to image?

I am able to do the above using Ghostscript DLL , Is there any other way , I can do it, without using the Ghostscript DLL?

I am developing a C# Windows Application.

Answer 1

Use LibPdf, for PDF to Image conversion

LibPdf library converts converts PDF file to an image. Supported image formats are PNG and BMP, but you can easily add more.

Usage example:

using (FileStream file = File.OpenRead(@"..\path\to\pdf\file.pdf")) // in file
{
    var bytes = new byte[file.Length];
    file.Read(bytes, 0, bytes.Length);
    using (var pdf = new LibPdf(bytes))
    {
        byte[] pngBytes = pdf.GetImage(0,ImageType.PNG); // image type
        using (var outFile = File.Create(@"..\path\to\pdf\file.png")) // out file
        {
            outFile.Write(pngBytes, 0, pngBytes.Length);
        }
    }
}

ImageMagick, you should also look at this freely available and powerful tool. It’s capable of doing what you want and also provides some .NET bindings (as well as bindings to several other languages).

In its simplest form, it’s just like writing a command

convert file.pdf imagefile.png