// For the new AI format please use the following code:
	async Task<bool> OpenPdfToPng(Stream pdfFileStream, string pngFileId, Size size)
	{
		pdfFileStream.Position = 0;
		try
		{
			using var pdfDocument = new Aspose.Pdf.Document(pdfFileStream);
			var page = pdfDocument.Pages[1];
			using var imageStream = new MemoryStream();
			Resolution resolution = new Resolution(300);
			PngDevice pngDevice = new PngDevice(size.Width, size.Height, resolution);
			pngDevice.Process(page, imageStream);
			imageStream.Position = 0;
			await StorageService.Upload(pngFileId, imageStream);
			imageStream.Close();
			return true;
		}
		catch (Aspose.Pdf.InvalidPdfFileFormatException)
		{
			return false;
		}
	}
	
	// For the Old AI Formats please use the Aspose.PSD high-code API
	using (AiImage image = (AiImage)Image.Load(sourceFileName))
	{
		ImageOptionsBase options = new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha };
		image.Save(outFileName, options);
	}

    public static boolean openPdfToPng(InputStream pdfFileStream, String pngFileId, Size size) {
        try {
            pdfFileStream.setPosition(0);
            try (Document pdfDocument = new Document(pdfFileStream)) {
                com.aspose.pdf.Page page = pdfDocument.getPages().get_Item(1);
                try (OutputStream imageStream = new ByteArrayOutputStream()) {
                    Resolution resolution = new Resolution(300);
                    PngDevice pngDevice = new PngDevice(size.getWidth(), size.getHeight(), resolution);
                    pngDevice.process(page, imageStream);
                    imageStream.setPosition(0);
                    StorageService.upload(pngFileId, imageStream);
                    return true;
                }
            } catch (com.aspose.pdf.exceptions.InvalidPdfFileFormatException e) {
                return false;
            }
        } catch (Exception ex) {
            return false;
        }
    }

    public static void convertAItoPNG(String sourceFileName, String outFileName) {
        try (AiImage image = (AiImage) Image.load(sourceFileName)) {
            ImageOptionsBase options = new PngOptions();
            options.setColorType(PngColorType.TruecolorWithAlpha);
            image.save(outFileName, options);
        }
    }

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