// Create FlattenFieldsOptions object to set instructions
var options = new FlattenFieldsOptions();
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileData("path_to_result_pdf_file.pdf"));
// Perform the process
PdfForm.Flatten(options);

// Get Fields Names
var fieldNames = PdfForm.GetNames(new GetFieldNamesOptions("path_to_your_pdf_file.pdf"));
// Create FlattenFieldsOptions object to set instructions
var options = new FlattenFieldsOptions();
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
options.AddOutput(new FileData("path_to_result_pdf_file.pdf"));
// Skip 1 field.
options.SkipFields.Add(fieldNames[0]);
// Perform the process
PdfForm.Flatten(options);

// Get Field Names
var fieldNames = PdfForm.GetNames(new GetFieldNamesOptions("path_to_your_pdf_file.pdf"));

// Prepare input stream
using var inputStream = File.OpenRead("path_to_your_pdf_file.pdf");
// Get Field Names
var fieldNames = PdfForm.GetNames(new GetFieldNamesOptions(inputStream));

using var pfxStream = File.OpenRead(@"path_to_your_pfx_file.pfx");
var options = new SignOptions(pfxStream, "password_of_your_pfx_file");

// Set input and output file paths
options.Input = new FileData("path_to_your_pdf_file.pdf");
options.Output = new FileData("path_to_result_pdf_file.pdf");

PdfSecurity.Sign(new SignOptions(
    "path_to_your_pdf_file.pdf",
    "path_to_result_pdf_file.pdf",
    "path_to_your_pfx_file.pfx",
    "password_of_your_pfx_file"));

// Prepare streams
using var pdfStreamInput = File.OpenRead(@"path_to_your_pdf_file.pdf");
using var pfxStreamInput = File.OpenRead(@"path_to_your_pfx_file.pfx");
using var pdfStreamOutput = new MemoryStream();

// Create SignOptions object to set instructions
var options = new SignOptions(pdfStreamInput, pdfStreamOutput, pfxStreamInput, "password_of_your_pfx_file");

// Perform the process
PdfSecurity.Sign(options);

// Create SignOptions object to set instructions
var options = new SignOptions(
    "path_to_your_pdf_file.pdf",
    "path_to_result_pdf_file.pdf",
    "path_to_your_pfx_file.pfx",
    "password_of_your_pfx_file");

// Perform the process
PdfSecurity.Sign(options);

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions(',', true);

// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));

// Set output file path
options.AddOutput(new FileData("path_to_result_csv_file.csv"));

// Perform the process
PdfExtractor.Extract(options);

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions();

// Set delimiter
options.Delimiter = '\t';

// Add field names to result
options.AddFieldName = true;

// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));

// Set output file path
options.AddOutput(new FileData("path_to_result_csv_file.tsv"));

// Perform the process
PdfForm.Extract(options);

// Create ExtractImagesOptions to set instructions
var options = new ExtractImagesOptions();
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryData("path_to_results_directory"));
// Perform the process
var results = PdfExtractor.Extract(options);
// Get path to image result
var imageExtracted = results.ResultCollection[0].ToFile();

// Create SignOptions object to set Timestamp
var options = new SignOptions(new TimestampOptions("server_url"));
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileData("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Sign(options);

// Create SignOptions object to set Timestamp
var options = new SignOptions(new TimestampOptions("server_url"));
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileData("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Sign(options);

// Создать объект SanitizeOptions и указать входной и выходной файлы
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf");
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Подготовить входной и выходной потоки
using var inputStream = File.OpenRead("path_to_your_pdf_file.pdf");
using var outputStream = new MemoryStream();
// Создать объект SanitizeOptions и указать входные и выходные потоки
var options = new SanitizeOptions(inputStream, outputStream);
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Подготовить выходной поток
using var outputStream = new MemoryStream();
// Создать объект SanitizeOptions и указать входной файл и выходной поток
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", outputStream);
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Создать объект SanitizeOptions
var options = new SanitizeOptions();
// Установить входной файл
options.Input = new FileData("path_to_your_pdf_file.pdf");
// Установить выходной файл
options.Output = new FileData("path_to_result_pdf_file.pdf");
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Создать объект SanitizeOptions и указать входной и выходной файлы
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf");
options.RemoveMetadata = false;
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Создать объект SanitizeOptions и указать входной и выходной файлы
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf");
options.RemoveAttachments = false;
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Создать объект SanitizeOptions и указать входной и выходной файлы
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf");
// Включить конвертацию и установить DPI
options.ConvertPagesToImages = true;
options.ImageDpi = 200;
// Выполнить процесс
PdfSecurity.Sanitize(options);

// Создать объект SanitizeOptions и указать входной и выходной файлы
var options = new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf");
options.RemoveJavaScriptsAndActions = false;
// Выполнить процесс
PdfSecurity.Sanitize(options);

PdfSecurity.Sanitize(new SanitizeOptions("path_to_your_pdf_file.pdf", "path_to_result_pdf_file.pdf"));

// Create ExtractPropertiesOptions object to set input file
var options = new ExtractPropertiesOptions("path_to_your_pdf_file.pdf");
// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(options);

var created = pdfProperties.Created;
var modified = pdfProperties.Modified;

// Create EncryptOptions object to set instructions
var options = new EncryptOptions("123456", "qwerty");
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileData("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Encrypt(options);

// Create TocOptions object to set instructions
var options = new TocOptions();
// Set the Title
options.Title = "My Table of Contents";
// Design Headings
options.Headings.Add(new TocHeading("Introduction", 2, false, 1));
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output stream 
var outputStream = new MemoryStream();
options.AddOutput(new StreamData(outputStream));
options.CloseOutputStreams = false;
// Perform the process
PdfManager.AddTableOfContents(options);

// Create PdfToTiffOptions object to set instructions
var options = new PdfToTiffOptions();
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryData("path_to_output_directory"));
// Perform the process
PdfConverter.Convert(options);

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions();
// Set Delimiter
options.Delimiter = '\t';
// Add Field Names to result
options.AddFieldName = true;
// Add input file path
options.AddInput(new FileData("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileData("path_to_result_csv_file.tsv"));
// Perform the process
PdfExtractor.Extract(options);

// Create ExtractPropertiesOptions object to set input file
var options = new ExtractPropertiesOptions("path_to_your_pdf_file.pdf");
// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(options);
var filename = pdfProperties.FileName;
var title = pdfProperties.Title;
var author = pdfProperties.Author;
var subject = pdfProperties.Subject;
var keywords = pdfProperties.Keywords;
var created = pdfProperties.Created;
var modified = pdfProperties.Modified;
var application = pdfProperties.Application;
var pdfProducer = pdfProperties.PdfProducer;
var numberOfPages = pdfProperties.NumberOfPages;

// Create ExtractPropertiesOptions object to set input stream
var stream = File.OpenRead("path_to_your_pdf_file.pdf");
var options = new ExtractPropertiesOptions(stream);
// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(options);
var title = pdfProperties.Title;
var author = pdfProperties.Author;
var subject = pdfProperties.Subject;
var keywords = pdfProperties.Keywords;
var created = pdfProperties.Created;
var modified = pdfProperties.Modified;
var application = pdfProperties.Application;
var pdfProducer = pdfProperties.PdfProducer;
var numberOfPages = pdfProperties.NumberOfPages;

// Create ExtractTextOptions object to set input file path
var options = new ExtractTextOptions("path_to_your_pdf_file.pdf");
// Perform the process and get the extracted text
var textExtracted = PdfExtractor.Extract(options);

// Create ExtractTextOptions object to set input stream
var stream = File.OpenRead("path_to_your_pdf_file.pdf");
var options = new ExtractTextOptions(stream);
// Perform the process and get the extracted text
var textExtracted = PdfExtractor.Extract(options);

// Create ExtractTextOptions object to set input file path and TextFormattingMode
var options = new ExtractTextOptions("path_to_your_pdf_file.pdf", TextFormattingMode.Pure);
// Perform the process and get the extracted text
var textExtracted = PdfExtractor.Extract(options);

// Perform the process and get the extracted text
var textExtracted = PdfExtractor.Extract(new ExtractTextOptions("path_to_your_pdf_file.pdf", TextFormattingMode.Pure));

// Create ExtractPropertiesOptions object to set input file
var options = new ExtractPropertiesOptions("path_to_your_pdf_file.pdf");
// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(options);
var title = pdfProperties.Title;
var author = pdfProperties.Author;
var subject = pdfProperties.Subject;
var keywords = pdfProperties.Keywords;
var numberOfPages = pdfProperties.NumberOfPages;

// Create ExtractPropertiesOptions object to set input stream
var stream = File.OpenRead("path_to_your_pdf_file.pdf");
var options = new ExtractPropertiesOptions(stream);
// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(options);
var title = pdfProperties.Title;
var author = pdfProperties.Author;
var subject = pdfProperties.Subject;
var keywords = pdfProperties.Keywords;
var numberOfPages = pdfProperties.NumberOfPages;

// Perform the process and get Properties
var pdfProperties = PdfExtractor.Extract(new ExtractPropertiesOptions("path_to_your_pdf_file.pdf"));

// Create FlattenFieldsOptions object to set instructions
var options = new FlattenFieldsOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfForm.Flatten(options);

var fieldNames = PdfForm.GetNames(new GetFieldNamesOptions("path_to_your_pdf_file.pdf"));

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions(',', true);
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_csv_file.csv"));
// Perform the process
PdfForm.Extract(options);

// Create RemoveFieldsOptions object to set instructions
var options = new RemoveFieldsOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfForm.Remove(options);

// Create ExtractTextOptions object to set instructions
var options = new ExtractTextOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Perform the process
var results = PdfExtractor.Extract(options);
// Get the extracted text from the ResultContainer object
var textExtracted = results.ResultCollection[0].ToString();

// Create ExtractImagesOptions to set instructions
var options = new ExtractImagesOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// Perform the process
var results = PdfExtractor.Extract(options);
// Get path to image result
var imageExtracted = results.ResultCollection[0].ToFile();

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions(',', true);
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_csv_file.csv"));
// Perform the process
PdfExtractor.Extract(options);

// Create PdfToDocOptions object to set instructions
var options = new PdfToDocOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_file.doc"));
// Perform the process
PdfConverter.Convert(options);

// Create PdfToXlsOptions object to set instructions
var options = new PdfToXlsOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_xlsx_file.xlsx"));
// Perform the process
PdfConverter.Convert(options);

// Create PdfToHtmlOptions object to set output data type as file with embedded resources
var options = new PdfToHtmlOptions(PdfToHtmlOptions.SaveDataType.FileWithEmbeddedResources);
// Add input file path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_output.html"));
//Perform the process
PdfConverter.Convert(options);

// Create HtmlToPdfOptions
var options = new HtmlToPdfOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_input.html"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_output.pdf"));
//Perform the process
PdfConverter.Convert(options);

// Create PdfToJpegOptions object to set instructions
var options = new PdfToJpegOptions();
// Add input File path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
PdfConverter.Convert(options);

// Create PdfToPngOptions object to set instructions
var options = new PdfToPngOptions();
// Add input File path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
PdfConverter.Convert(options);

// Create PdfToTiffOptions object to set instructions
var options = new PdfToTiffOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
PdfConverter.Convert(options);

// Create the options class to set up the conversion process
var options = new PdfToPdfAOptions
{
    PdfAVersion = PdfAStandardVersion.PDF_A_3B
};

// Add the source file
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf")); // replace with your actual file path

// Add the path to save the converted file
options.AddOutput(new FileDataSource("path_to_the_converted_file.pdf"));

// Run the conversion
PdfConverter.Convert(options);

// Create the options class to set up the validation process
var options = new PdfAValidateOptions
{
    PdfAVersion = PdfAStandardVersion.PDF_A_1A
};

// Add one or more files to be validated
options.AddInput(new FileDataSource("path_to_your_first_pdf_file.pdf")); // replace with your actual file path
options.AddInput(new FileDataSource("path_to_your_second_pdf_file.pdf"));
// add more files as needed

// Run the validation and get results
var resultContainer = PdfConverter.Validate(options);

// Check the resultContainer.ResultCollection property for validation results for each file:
for (var i = 0; i < resultContainer.ResultCollection.Count; i++)
{
    var result = resultContainer.ResultCollection[i];
    var validationResult = (PdfAValidationResult) result.Data;
    var isValid = validationResult.IsValid; // Validation result for the i-th document
}

// Create EncryptOptions object to set instructions
var options = new EncryptOptions("123456", "qwerty");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Encrypt(options);

// Create DecryptOptions object to set instructions
var options = new DecryptOptions("123456");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Decrypt(options);

// Create SignOptions object to set instructions
var options = new SignOptions("path_to_your_pfx_file.pfx", "password_of_your_pfx_file");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Sign(options);

// Create SignOptions object to set instructions
var options = new SignOptions("path_to_your_pfx_file.pfx", "password_for_your_pfx_file");
options.TimestampOptions = new TimestampOptions("server_url");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfSecurity.Sign(options);

var options = new ChatGptRequestOptions();
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf")); 
options.ApiKey = "Your API key."; // You need to provide the key to access the API.
options.MaxTokens = 1000; // The maximum number of tokens to generate in the chat completion.

// Add the request messages.
options.Messages.Add(new Message
{
    Content = "You are a helpful assistant.",
    Role = Role.System
});
options.Messages.Add(new Message
{
    Content = "What is the biggest pizza diameter ever made?",
    Role = Role.User
});

// Process the request.
var result = await PdfManager.CreatePdfByChatGptRequestAsync(options);

var fileResultPath = result.ResultCollection[0].Data;
var chatCompletionObject = result.ResultCollection[1].Data as ChatCompletion; // The ChatGPT API chat completion object.

// Create ExtractTextOptions object to set instructions
var options = new ExtractTextOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Perform the process
var results = PdfExtractor.ExtractText(options);
// Get the extracted text from the ResultContainer object
var textExtracted = results.ResultCollection[0].ToString();

// Create ExtractTextOptions object to set TextFormattingMode
var options = new ExtractTextOptions(TextFormattingMode.Pure);
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Perform the process
var results = PdfExtractor.ExtractText(options);
// Get the extracted text from the ResultContainer object
var textExtracted = results.ResultCollection[0].ToString();

// Create ExtractImagesOptions to set instructions
var options = new ExtractImagesOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// Perform the process
var results = PdfExtractor.ExtractImages(options);
// Get path to image result
var imageExtracted = results.ResultCollection[0].ToFile();

// Create ExtractFormDataToDsvOptions object to set instructions
var options = new ExtractFormDataToDsvOptions(',', true);
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_csv_file.csv"));
// Perform the process
PdfExtractor.ExtractFormData(options);

// Create MergeOptions object to set instructions
var options = new MergeOptions();
// Add input file paths
options.AddInput(new FileDataSource("path_to_your_pdf_file_1.pdf"));
options.AddInput(new FileDataSource("path_to_your_pdf_file_2.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.Merge(options);

// Create SplitOptions object to set instructions
var options = new SplitOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file paths
options.AddOutput(new FileDataSource("path_to_result_pdf_file_1.pdf"));
options.AddOutput(new FileDataSource("path_to_result_pdf_file_2.pdf"));
// Perform the process
PdfManager.Split(options);

// Create OptimizeOptions object to set instructions
var options = new OptimizeOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.Optimize(options);

// Create RotateOptions object to set instructions
var options = new RotateOptions();
// Set new Rotation
options.Rotation = Rotation.On90;
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.Rotate(options);

// Create ResizeOptions object to set instructions
var options = new ResizeOptions();
// Set new PageSize
options.PageSize = PageSize.A3;
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.Resize(options);

// Create CompressOptions object to set instructions
var options = new CompressOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.Compress(options);

// Configure table options
var options = new TableOptions();
options.InsertPageBefore(1)
   .AddTable()
        .AddRow()
            .AddCell().AddParagraph("Name")
            .AddCell().AddParagraph("Age")
        .AddRow()
            .AddCell().AddParagraph("Bob")
            .AddCell().AddParagraph("12")
        .AddRow()
            .AddCell().AddParagraph("Sam")
            .AddCell().AddParagraph("20")
        .AddRow()
            .AddCell().AddParagraph("Sandy")
            .AddCell().AddParagraph("26")
        .AddRow()
            .AddCell().AddParagraph("Tom")
            .AddCell().AddParagraph("12")
        .AddRow()
            .AddCell().AddParagraph("Jim")
            .AddCell().AddParagraph("27");
// Add input file path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_output.pdf"));
// Perform the process
PdfManager.AddTable(options);

// Create TocOptions object to set instructions
var options = new TocOptions();
// Set the Title
options.Title = "My Table of Contents";
// Design Headings
options.Headings.Add(new TocHeading("Introduction", 2));
options.Headings.Add(new TocHeading("Chapter I", 3));
options.Headings.Add(new TocHeading("Chapter II", 4));
options.Headings.Add(new TocHeading("Chapter III", 5));
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.AddTableOfContents(options);

// Create TocOptions object to set instructions
var options = new TocOptions();
// Set the Title
options.Title = "My Table of Contents";
// Generate links in bookmarks
options.GenerateBookmarks = true;
// Design Headings
options.Headings.Add(new TocHeading("Introduction", 2, false, 1));
options.Headings.Add(new TocHeading("Chapter I", 3, true, 1));
options.Headings.Add(new TocHeading("Chapter II", 4, true, 1));
options.Headings.Add(new TocHeading("Example A", 4, true, 2));
options.Headings.Add(new TocHeading("Example B", 4, true, 2));
options.Headings.Add(new TocHeading("Example C", 4, true, 2));
options.Headings.Add(new TocHeading("Example D", 4, true, 2));
options.Headings.Add(new TocHeading("Chapter III", 5, true, 1));
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
PdfManager.AddTableOfContents(options);

// Create TocOptions object to set instructions
var options = new TocOptions();
// Set the Title
options.Title = "My Table of Contents";
// Design Headings
options.Headings.Add(new TocHeading("Introduction", 2, false, 1));
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output stream 
var outputStream = new MemoryStream();
options.AddOutput(new StreamDataSource(outputStream));
options.CloseOutputStreams = false;
// Perform the process
PdfManager.AddTableOfContents(options);

var options = new PdfChatGptRequestOptions();
options.AddOutput(new FileDataSource("PdfChatGPT_output.pdf")); // Add the output file path.
options.ApiKey = "Your API key."; // You need to provide the key to access the API.
options.MaxTokens = 1000; // The maximum number of tokens to generate in the chat completion.
// for cancel
// var cancelTokenSource = new CancellationTokenSource();
// var cToken = cancelTokenSource.Token;
// options.CancellationToken = cToken;

// Add the request messages.
options.Messages.Add(new Message
{
    Content = "You are a helpful assistant.",
    Role = Role.System
});
options.Messages.Add(new Message
{
    Content = "What is the biggest pizza diameter ever made?",
    Role = Role.User
});

// Process the request.
await PdfChatGpt.ProcessAsync(options);

// The example demonstrates how to convert PDF document to Doc format.
// Create PdfToDocOptions object to set instructions
var options = new PdfToDocOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_file.doc"));
// Perform the process
DocConverter.Process(options);

// The example demonstrates how to convert PDF document to Doc format with setting Mode.
// Create PdfToDocOptions object to set instructions
var options = new PdfToDocOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_file.doc"));
// Set Mode
options.Mode = DocConversionMode.Flow;
// Perform the process
DocConverter.Process(options);

// The example demonstrates how to convert the PDF document in a PDF/A format (PDF/A-3b in this case):
// Create the options class to set up the conversion process
var options = new PdfAConvertOptions
{
    PdfAVersion = PdfAStandardVersion.PDF_A_3B
};

// Add the source file
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf")); // replace with your actual file path

// Add the path to save the converted file
options.AddOutput(new FileDataSource("path_to_the_converted_file.pdf"));

// Run the conversion
PdfAConverter.Process(options);

// The example demonstrates how to validate the PDF document conformance to PDF/A format (PDF/A-1a in this case):
// Create the options class to set up the validation process
var options = new PdfAValidateOptions
{
    PdfAVersion = PdfAStandardVersion.PDF_A_1A
};

// Add one or more files to be validated
options.AddInput(new FileDataSource("path_to_your_first_pdf_file.pdf")); // replace with your actual file path
options.AddInput(new FileDataSource("path_to_your_second_pdf_file.pdf"));
// add more files as needed

// Run the validation and get results
var resultContainer = PdfAConverter.Process(options);

// Check the resultContainer.ResultCollection property for validation results for each file:
for (var i = 0; i < resultContainer.ResultCollection.Count; i++)
{
    var result = resultContainer.ResultCollection[i];
    var validationResult = (PdfAValidationResult) result.Data;
    var isValid = validationResult.IsValid; // Validation result for the i-th document
}

// The example demonstrates how to add Timestamp to the document.
// Create AddTimestampOptions object to set instructions
var options = new AddTimestampOptions("path_to_your_pfx_file.pfx", "password_for_your_pfx_file", "timestamp_server_url");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Timestamp.Process(options);

// The example demonstrates how to convert PDF document into JPEG format.
// Create PdfToJpegOptions object to set instructions
var options = new PdfToJpegOptions();
// Add input File path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
JpegConverter.Process(options);

// The example demonstrates how to convert PDF document into PNG format.
// Create PdfToPngOptions object to set instructions
var options = new PdfToPngOptions();
// Add input File path
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
PngConverter.Process(options);

// The example demonstrates how to convert PDF to XLSX document.
// Create PdfToXlsOptions object to set instructions
var options = new PdfToXlsOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_xlsx_file.xlsx"));
// Perform the process
XlsConverter.Process(options);

// The example demonstrates how to sign PDF document.
// Create SignOptions object to set instructions
var options = new SignOptions("path_to_your_pfx_file.pfx", "password_of_your_pfx_file");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Signature.Process(options);

// Пример показывает, как извлечь текстовое содержимое PDF‑документа.
// Создаём объект TextExtractorOptions для установки параметров
var options = new TextExtractorOptions(TextFormattingMode.Pure);
// Добавляем путь к входному файлу
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Выполняем процесс
var results = TextExtractor.Process(options);
// Получаем извлечённый текст из объекта ResultContainer
var textExtracted = results.ResultCollection[0].ToString();

// Пример показывает, как конвертировать PDF в HTML.
// Создаём объект PdfToHtmlOptions, задавая тип сохраняемых данных как файл с встроенными ресурсами
var options = new PdfToHtmlOptions(PdfToHtmlOptions.SaveDataType.FileWithEmbeddedResources);
// Добавляем путь к входному файлу
options.AddInput(new FileDataSource("path_to_input.pdf"));
// Указываем путь к выходному файлу
options.AddOutput(new FileDataSource("path_to_output.html"));
// Выполняем процесс
HtmlConverter.Process(options);

// Пример показывает, как конвертировать HTML в PDF.
// Создаём объект HtmlToPdfOptions
var options = new HtmlToPdfOptions();
// Добавляем путь к входному файлу
options.AddInput(new FileDataSource("path_to_input.html"));
// Указываем путь к выходному файлу
options.AddOutput(new FileDataSource("path_to_output.pdf"));
// Выполняем процесс
HtmlConverter.Process(options);

// Пример показывает, как извлекать изображения из PDF‑документа.
// Создаём объект ImageExtractorOptions для установки параметров
var options = new ImageExtractorOptions();
// Добавляем путь к входному файлу
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Задаём путь к директории вывода
options.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// Выполняем процесс
var results = ImageExtractor.Process(options);
// Получаем путь к извлечённому изображению
var imageExtracted = results.ResultCollection[0].ToFile();

// The example demonstrates how to convert PDF document into TIFF format.
// Create PdfToTiffOptions object to set instructions
var options = new PdfToTiffOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Perform the process
TiffConverter.Process(options);

// The example demonstrates how to convert PDF document into TIFF format with additional parameters.
// Create PdfToTiffOptions object to set instructions
var options = new PdfToTiffOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output Directory path
options.AddOutput(new DirectoryDataSource("path_to_output_directory"));
// Optional parameters
options.PageList = new List<int> { 1, 3 };
options.MultiPage = true;
options.OutputResolution = 400;
options.Compression = TiffCompression.RLE;
options.ColorDepth = TiffColorDepth.Format24bpp;
// Perform the process
TiffConverter.Process(options);

// The example demonstrates how to Export Form values to CSV file.
// Create FormExportToDsvOptions object to set instructions
var options = new FormExportToDsvOptions(',', true);
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_csv_file.csv"));
// Perform the process
FormExporter.Process(options);

// The example demonstrates how to encrypt PDF document.
// Create EncryptionOptions object to set instructions
var options = new EncryptionOptions("123456", "qwerty");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Security.Process(options);

// The example demonstrates how to decrypt PDF document.
// Create DecryptionOptions object to set instructions
var options = new DecryptionOptions("123456");
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Security.Process(options);

// The example demonstrates how to Optimize PDF document.
// Create OptimizeOptions object to set instructions
var options = new OptimizeOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Optimizer.Process(options);

// The example demonstrates how to Rotate PDF document.
// Create RotateOptions object to set instructions
var options = new RotateOptions();
// Set new Rotation
options.Rotation = Rotation.On90;
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Optimizer.Process(options);

// The example demonstrates how to Resize PDF document.
// Create ResizeOptions object to set instructions
var options = new ResizeOptions();
// Set new PageSize
options.PageSize = PageSize.A3;
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Optimizer.Process(options);

// The example demonstrates how to Compress PDF document.
// Create CompressOptions object to set instructions
var options = new CompressOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Optimizer.Process(options);

// The example demonstrates how to Split PDF document.
// Create SplitOptions object to set instructions
var options = new SplitOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file paths
options.AddOutput(new FileDataSource("path_to_result_pdf_file_1.pdf"));
options.AddOutput(new FileDataSource("path_to_result_pdf_file_2.pdf"));
// Perform the process
Splitter.Process(options);

// The example demonstrates how to Merge two PDF documents.
// Create MergeOptions object to set instructions
var options = new MergeOptions();
// Add input file paths
options.AddInput(new FileDataSource("path_to_your_pdf_file_1.pdf"));
options.AddInput(new FileDataSource("path_to_your_pdf_file_2.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
Merger.Process(options);

// The example demonstrates how to Flatten fields in PDF file.
// Create FormFlattenerOptions object to set instructions
var options = new FormFlattenerOptions();
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Optional parameter for skip the field with name "Surname".
options.SkipFields.Add("Surname");
// Perform the process
FormFlattener.Process(options);

// The example demonstrates how to Get Field Names from PDF file.
var fieldNames = FormFlattener.GetFieldNames("path_to_your_pdf_file.pdf");

// The example demonstrates how to add Table of Contents to PDF file.
var options = new TocOptions();
// Set the Title
options.Title = "My Table of Contents";
// Generate links in bookmarks
options.GenerateBookmarks = true;
// Design Headings
options.Headings.Add(new TocHeading("Introduction", 2, false, 1));
options.Headings.Add(new TocHeading("Chapter I", 3, true, 1));
options.Headings.Add(new TocHeading("Chapter II", 4, true, 1));
options.Headings.Add(new TocHeading("Example A", 4, true, 2));
options.Headings.Add(new TocHeading("Example B", 4, true, 2));
options.Headings.Add(new TocHeading("Example C", 4, true, 2));
options.Headings.Add(new TocHeading("Example D", 4, true, 2));
options.Headings.Add(new TocHeading("Chapter III", 5, true, 1));
// Add input file path
options.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// Set output file path
options.AddOutput(new FileDataSource("path_to_result_pdf_file.pdf"));
// Perform the process
TocGenerator.Process(options);

// create ImageExtractor object to extract images
var plugin = new ImageExtractor();
// create ImageExtractorOptions
var opt = new ImageExtractorOptions();
// add input file path
opt.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// set output directory
opt.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// perform extraction process
var resultContainer = plugin.Process(opt);
// get the image from the ResultContainer object
var imageExtracted = resultContainer.ResultCollection[0].ToFile();

// create PngConverter
var plugin = new PngConverter();
// create PdfToPngOptions object to set instructions
var opt = new PdfToPngOptions();
// add input file path
opt.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// set output file path
opt.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// perform the process
plugin.Process(opt);

// create TiffConverter
var plugin = new TiffConverter();
// create PdfToTiffOptions object to set instructions
var opt = new PdfToTiffOptions();
// add input file path
opt.AddInput(new FileDataSource("path_to_your_pdf_file.pdf"));
// set output file path
opt.AddOutput(new DirectoryDataSource("path_to_results_directory"));
// perform the process
plugin.Process(opt);