Replace text in PDF via .NET SDK

    public static async Task DocumentTextReplace()
    {
        const string localImageFileName = @"C:\Samples\sample.pdf";
        const string storageFileName = "sample.pdf";
        const string localFolder = @"C:\Samples";
        const string resultFileName = "output_doc_replace_text.pdf";
        const string storageTempFolder = "YourTempFolder";

        // Get your AppSid and AppSecret from https://dashboard.aspose.cloud (free registration required).
        var pdfApi = new PdfApi(AppSecret, AppSid);

        using var file = File.OpenRead(localImageFileName);
        var uploadResult = await pdfApi.UploadFileAsync(Path.Combine(storageTempFolder, storageFileName), file);
        Console.WriteLine(uploadResult.Uploaded[0]);

        var rect = new Rectangle(0, 0, 800, 500);
        var textReplace = new TextReplace("Your-Document-Text", "New-Document-Text", false, Rect: rect);
        var textReplaceList = new TextReplaceListRequest(new List<TextReplace> { textReplace },
            StartIndex: 0, CountReplace: 0);

        var response = await pdfApi.PostDocumentTextReplaceAsync(storageFileName, textReplaceList, folder: storageTempFolder);

        using Stream downloadStream = await pdfApi.DownloadFileAsync(Path.Combine(storageTempFolder, storageFileName));
        using FileStream localStream = File.Create(Path.Combine(localFolder, resultFileName));
        downloadStream.CopyTo(localStream);

        Console.WriteLine($"DocumentTextReplace(): {response.Matches} text occurencies successfully replaced in PDF document {resultFileName}.");
    }