C# Convert PUB to PNG Programmatically in .NET

convert-pub-to-png.cs

// This code example demonstrates how to convert Publisher PUB file to PNG image format.
// Load PUB file and create PUB Parser
var parser = PubFactory.CreateParser("C:\\Files\\sample.pub");

// Parse the PUB file
var doc = parser.Parse();

// Initialize memory stream
MemoryStream stream = new MemoryStream();

// Convert PUB to PDF file
PubFactory.CreatePdfConverter().ConvertToPdf(doc, stream);

// Load PDF document stream
Aspose.Pdf.Document document = new Aspose.Pdf.Document(stream);

// Loop through all the pages of PDF
foreach (Page page in document.Pages)
{
    // Get PDF file info
    PdfFileInfo info = new PdfFileInfo(document);

    // Get Page width and height
    int width = Convert.ToInt32(info.GetPageWidth(page.Number));
    int height = Convert.ToInt32(info.GetPageHeight(page.Number));

    // Create Resolution object
    Resolution resolution = new Resolution(300);

    // Create Jpeg device with specified Width, Height, and Resolution
    PngDevice PngDevice = new PngDevice(width, height, resolution);

    // Process the Page file and save output JPEG image
    PngDevice.Process(page, "C:\\Files\\Page" + page.Number + ".png");
}

convert-pub-to-png.md

You can read all the details at: Convert PUB to PNG using C#