PDF to PNG C# Conversion

pdf-to-png-single-page.cs

// Open PDF document
Document pdfDocument = new Document("Document.pdf");

// Set page index
int page = 1;

// Create FileStream for the output image
using (FileStream imageStream = new FileStream(string.Format("page_{0}.png", page), FileMode.Create))
{
    // Create Resolution object
    Resolution resolution = new Resolution(300);

    // Create Png device with specified attributes
    // Width, Height, Resolution
    PngDevice PngDevice = new PngDevice(500, 700, resolution);

    // Convert a particular page and save the image to stream
    PngDevice.Process(pdfDocument.Pages[page], imageStream);

    // Close stream
    imageStream.Close();
}

pdf-to-png.cs

// Open PDF document
Document pdfDocument = new Document("Document.pdf");

// Loop through each page
foreach (var page in pdfDocument.Pages)
{
    // Create file stream for output image
    using (FileStream imageStream = new FileStream(string.Format("page_{0}.png", page.Number), FileMode.Create))
    {
        // Create Resolution object
        Resolution resolution = new Resolution(300);
        
        // Create Png device with specified attributes
        // Width, Height, Resolution
        PngDevice PngDevice = new PngDevice(500, 700, resolution);

        // Convert a particular page and save the image to stream
        PngDevice.Process(page, imageStream);

        // Close stream
        imageStream.Close();
    }
}