Tambahkan Teks ke PDF di .NET SDK

    public static void Add()
    {
        const string localImageFileName = @"C:\Samples\Sample-Document-01.pdf";
        const string storageFileName = "Sample-Document-01.pdf";
        const string resultFileName = "Sample-Document-01.pdf";

        // Get your AppSid and AppSecret from https://dashboard.aspose.cloud (free registration required).
        var pdfApi = new PdfApi(AppSecret, AppSid);
        if (pdfApi.GetFilesList(".").Value.All(f => f.Name != storageFileName))
        {
            using var file = File.OpenRead(localImageFileName);
            var uploadResult = pdfApi.UploadFile(storageFileName, file);
            Console.WriteLine(uploadResult.Uploaded[0]);
        }

        Paragraph paragraph = new()
        {
            Lines =
            [
                new TextLine() {
                    Segments = [
                        new Segment("Lorem ipsum",
                        new TextState() {
                            FontSize = 20,
                            Font = "Arial",
                            ForegroundColor = new Color(255, 0, 0, 255),
                            BackgroundColor = new Color(255, 255, 255, 0),
                            FontStyle = FontStyles.Regular,
                            Underline = true
                        })
                    ]

                }
            ],
            HorizontalAlignment = TextHorizontalAlignment.Justify,
            VerticalAlignment = VerticalAlignment.Center,
        };

        pdfApi.PutAddText(storageFileName, 1, paragraph);
        pdfApi.DownloadFile(storageFileName)
            .CopyTo(File.Create(resultFileName));
    }