AcroForm 생성 - C#에서 작성 가능한 PDF 만들기

다음 코드 스니펫은 Aspose.PDF.Drawing 라이브러리와 함께 작동합니다.

처음부터 양식 만들기

PDF 문서에 양식 필드 추가

Document 클래스는 PDF 문서에서 양식 필드를 관리하는 데 도움이 되는 Form이라는 컬렉션을 제공합니다.

양식 필드를 추가하려면:

1. 추가할 양식 필드를 생성합니다.
2. Form 컬렉션의 Add 메서드를 호출합니다.

TextBoxField 추가

아래 예제는 TextBoxField를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTextBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using (var document = new Aspose.Pdf.Document(dataDir + "TextField.pdf"))
    {
        // Create a field
        var textBoxField = new Aspose.Pdf.Forms.TextBoxField(document.Pages[1], new Aspose.Pdf.Rectangle(100, 200, 300, 300));
        textBoxField.PartialName = "textbox1";
        textBoxField.Value = "Text Box";

        // Configure border
        var border = new Aspose.Pdf.Annotations.Border(textBoxField);
        border.Width = 5;
        border.Dash = new Aspose.Pdf.Annotations.Dash(1, 1);
        textBoxField.Border = border;

        // Set color
        textBoxField.Color = Aspose.Pdf.Color.FromRgb(System.Drawing.Color.Green);

        // Add field to the document
        document.Form.Add(textBoxField, 1);

        // Save PDF document
        document.Save(dataDir + "TextBox_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTextBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using var document = new Aspose.Pdf.Document(dataDir + "TextField.pdf");

    // Create a field
    var textBoxField = new Aspose.Pdf.Forms.TextBoxField(document.Pages[1], new Aspose.Pdf.Rectangle(100, 200, 300, 300));
    textBoxField.PartialName = "textbox1";
    textBoxField.Value = "Text Box";

    // Configure border
    var border = new Aspose.Pdf.Annotations.Border(textBoxField);
    border.Width = 5;
    border.Dash = new Aspose.Pdf.Annotations.Dash(1, 1);
    textBoxField.Border = border;

    // Set color
    textBoxField.Color = Aspose.Pdf.Color.FromRgb(System.Drawing.Color.Green);

    // Add field to the document
    document.Form.Add(textBoxField, 1);

    // Save PDF document
    document.Save(dataDir + "TextBox_out.pdf");
}

RadioButtonField 추가

다음 코드 스니펫은 PDF 문서에 RadioButtonField를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddRadioButtonToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        document.Pages.Add();

        // Instantiate RadioButtonField object with page number as argument
        var radio = new Aspose.Pdf.Forms.RadioButtonField(document.Pages[1]);

        // Add first radio button option and also specify its origin using Rectangle object
        radio.AddOption("Test", new Aspose.Pdf.Rectangle(0, 0, 20, 20));

        // Add second radio button option
        radio.AddOption("Test1", new Aspose.Pdf.Rectangle(20, 20, 40, 40));

        // Add radio button to form object of Document object
        document.Form.Add(radio);

        // Save PDF document
        document.Save(dataDir + "RadioButton_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddRadioButtonToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    document.Pages.Add();

    // Instantiate RadioButtonField object with page number as argument
    var radio = new Aspose.Pdf.Forms.RadioButtonField(document.Pages[1]);

    // Add first radio button option and also specify its origin using Rectangle object
    radio.AddOption("Test", new Aspose.Pdf.Rectangle(0, 0, 20, 20));

    // Add second radio button option
    radio.AddOption("Test1", new Aspose.Pdf.Rectangle(20, 20, 40, 40));

    // Add radio button to form object of Document object
    document.Form.Add(radio);

    // Save PDF document
    document.Save(dataDir + "RadioButton_out.pdf");
}

TextBoxField는 일부 위젯 주석과 함께 추가할 수 있습니다.

.NET Core 3.1

// For complete examples and data files, please visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTextBoxFieldToPdf()
{
    // The path to the documents directory
    string dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        var page = document.Pages.Add();

        // Defining an array with rectangle data for widget annotations. 
        // The number of elements in the array determines the number of widget annotations to add.
        var rects = new Aspose.Pdf.Rectangle[]
        {
            new Aspose.Pdf.Rectangle(10, 600, 110, 620),
            new Aspose.Pdf.Rectangle(10, 630, 110, 650),
            new Aspose.Pdf.Rectangle(10, 660, 110, 680)
        };

        // Defining an array with DefaultAppearance used to specify how widget annotations are displayed in the added field.
        var defaultAppearances = new Aspose.Pdf.Annotations.DefaultAppearance[]
        {
            new Aspose.Pdf.Annotations.DefaultAppearance("Arial", 10, System.Drawing.Color.DarkBlue),
            new Aspose.Pdf.Annotations.DefaultAppearance("Helvetica", 12, System.Drawing.Color.DarkGreen),
            new Aspose.Pdf.Annotations.DefaultAppearance(Aspose.Pdf.Text.FontRepository.FindFont("TimesNewRoman"), 14, System.Drawing.Color.DarkMagenta)
        };

        // Create a field
        var textBoxField = new Aspose.Pdf.Forms.TextBoxField(page, rects);

        // Setting the appearances of widget annotations
        short i = 0;
        foreach (Aspose.Pdf.Annotations.WidgetAnnotation wa in textBoxField)
        {
            wa.DefaultAppearance = defaultAppearances[i++];
        }
        textBoxField.Value = "Text";

        // Add field to the document
        document.Form.Add(textBoxField);

        // Save PDF document
        document.Save(dataDir + "TextBox_out.pdf");
    }
}

.NET 8

// For complete examples and data files, please visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTextBoxFieldToPdf()
{
    // The path to the documents directory
    string dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    var page = document.Pages.Add();

    // Defining an array with rectangle data for widget annotations. 
    // The number of elements in the array determines the number of widget annotations to add.
    var rects = new Aspose.Pdf.Rectangle[]
    {
        new Aspose.Pdf.Rectangle(10, 600, 110, 620),
        new Aspose.Pdf.Rectangle(10, 630, 110, 650),
        new Aspose.Pdf.Rectangle(10, 660, 110, 680)
    };

    // Defining an array with DefaultAppearance used to specify how widget annotations are displayed in the added field.
    var defaultAppearances = new Aspose.Pdf.Annotations.DefaultAppearance[]
    {
        new Aspose.Pdf.Annotations.DefaultAppearance("Arial", 10, System.Drawing.Color.DarkBlue),
        new Aspose.Pdf.Annotations.DefaultAppearance("Helvetica", 12, System.Drawing.Color.DarkGreen),
        new Aspose.Pdf.Annotations.DefaultAppearance(Aspose.Pdf.Text.FontRepository.FindFont("TimesNewRoman"), 14, System.Drawing.Color.DarkMagenta)
    };

    // Create a field
    var textBoxField = new Aspose.Pdf.Forms.TextBoxField(page, rects);

    // Setting the appearances of widget annotations
    short i = 0;
    foreach (Aspose.Pdf.Annotations.WidgetAnnotation wa in textBoxField)
    {
        wa.DefaultAppearance = defaultAppearances[i++];
    }
    textBoxField.Value = "Text";

    // Add field to the document
    document.Form.Add(textBoxField);

    // Save PDF document
    document.Save(dataDir + "TextBox_out.pdf");
}

다음 코드 스니펫은 세 가지 옵션이 있는 RadioButtonField를 추가하고 이를 테이블 셀 안에 배치하는 단계를 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddRadioButtonWithOptionsToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        var page = document.Pages.Add();

        // Create a table
        var table = new Aspose.Pdf.Table();
        table.ColumnWidths = "120 120 120";
        page.Paragraphs.Add(table);

        // Add a row to the table
        var r1 = table.Rows.Add();

        // Add cells to the row
        var c1 = r1.Cells.Add();
        var c2 = r1.Cells.Add();
        var c3 = r1.Cells.Add();

        // Create a RadioButtonField
        var rf = new Aspose.Pdf.Forms.RadioButtonField(page);
        rf.PartialName = "radio";
        document.Form.Add(rf, 1);

        // Create RadioButtonOptionField options
        var opt1 = new Aspose.Pdf.Forms.RadioButtonOptionField();
        var opt2 = new Aspose.Pdf.Forms.RadioButtonOptionField();
        var opt3 = new Aspose.Pdf.Forms.RadioButtonOptionField();

        opt1.OptionName = "Item1";
        opt2.OptionName = "Item2";
        opt3.OptionName = "Item3";

        opt1.Width = 15;
        opt1.Height = 15;
        opt2.Width = 15;
        opt2.Height = 15;
        opt3.Width = 15;
        opt3.Height = 15;

        rf.Add(opt1);
        rf.Add(opt2);
        rf.Add(opt3);

        // Configure borders and captions for options
        opt1.Border = new Aspose.Pdf.Annotations.Border(opt1);
        opt1.Border.Width = 1;
        opt1.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
        opt1.Characteristics.Border = System.Drawing.Color.Black;
        opt1.DefaultAppearance.TextColor = System.Drawing.Color.Red;
        opt1.Caption = new Aspose.Pdf.Text.TextFragment("Item1");

        opt2.Border = new Aspose.Pdf.Annotations.Border(opt2);
        opt2.Border.Width = 1;
        opt2.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
        opt2.Characteristics.Border = System.Drawing.Color.Black;
        opt2.DefaultAppearance.TextColor = System.Drawing.Color.Red;
        opt2.Caption = new Aspose.Pdf.Text.TextFragment("Item2");

        opt3.Border = new Aspose.Pdf.Annotations.Border(opt3);
        opt3.Border.Width = 1;
        opt3.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
        opt3.Characteristics.Border = System.Drawing.Color.Black;
        opt3.DefaultAppearance.TextColor = System.Drawing.Color.Red;
        opt3.Caption = new Aspose.Pdf.Text.TextFragment("Item3");

        // Add options to the cells
        c1.Paragraphs.Add(opt1);
        c2.Paragraphs.Add(opt2);
        c3.Paragraphs.Add(opt3);

        // Save PDF document
        document.Save(dataDir + "RadioButtonWithOptions_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddRadioButtonWithOptionsToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    var page = document.Pages.Add();

    // Create a table
    var table = new Aspose.Pdf.Table();
    table.ColumnWidths = "120 120 120";
    page.Paragraphs.Add(table);

    // Add a row to the table
    var r1 = table.Rows.Add();

    // Add cells to the row
    var c1 = r1.Cells.Add();
    var c2 = r1.Cells.Add();
    var c3 = r1.Cells.Add();

    // Create a RadioButtonField
    var rf = new Aspose.Pdf.Forms.RadioButtonField(page);
    rf.PartialName = "radio";
    document.Form.Add(rf, 1);

    // Create RadioButtonOptionField options
    var opt1 = new Aspose.Pdf.Forms.RadioButtonOptionField();
    var opt2 = new Aspose.Pdf.Forms.RadioButtonOptionField();
    var opt3 = new Aspose.Pdf.Forms.RadioButtonOptionField();

    opt1.OptionName = "Item1";
    opt2.OptionName = "Item2";
    opt3.OptionName = "Item3";

    opt1.Width = 15;
    opt1.Height = 15;
    opt2.Width = 15;
    opt2.Height = 15;
    opt3.Width = 15;
    opt3.Height = 15;

    rf.Add(opt1);
    rf.Add(opt2);
    rf.Add(opt3);

    // Configure borders and captions for options
    opt1.Border = new Aspose.Pdf.Annotations.Border(opt1);
    opt1.Border.Width = 1;
    opt1.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
    opt1.Characteristics.Border = System.Drawing.Color.Black;
    opt1.DefaultAppearance.TextColor = System.Drawing.Color.Red;
    opt1.Caption = new Aspose.Pdf.Text.TextFragment("Item1");

    opt2.Border = new Aspose.Pdf.Annotations.Border(opt2);
    opt2.Border.Width = 1;
    opt2.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
    opt2.Characteristics.Border = System.Drawing.Color.Black;
    opt2.DefaultAppearance.TextColor = System.Drawing.Color.Red;
    opt2.Caption = new Aspose.Pdf.Text.TextFragment("Item2");

    opt3.Border = new Aspose.Pdf.Annotations.Border(opt3);
    opt3.Border.Width = 1;
    opt3.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
    opt3.Characteristics.Border = System.Drawing.Color.Black;
    opt3.DefaultAppearance.TextColor = System.Drawing.Color.Red;
    opt3.Caption = new Aspose.Pdf.Text.TextFragment("Item3");

    // Add options to the cells
    c1.Paragraphs.Add(opt1);
    c2.Paragraphs.Add(opt2);
    c3.Paragraphs.Add(opt3);

    // Save PDF document
    document.Save(dataDir + "RadioButtonWithOptions_out.pdf");
}

RadioButtonField에 캡션 추가

다음 코드 스니펫은 RadioButtonField와 연결될 캡션을 추가하는 방법을 보여줍니다:

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddingCaptionToRadioButtonField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Load source PDF form
    using (var form = new Aspose.Pdf.Facades.Form(dataDir + "RadioButtonField.pdf"))
    {
        using (var document = new Aspose.Pdf.Document(dataDir + "RadioButtonField.pdf"))
        {
            foreach (var item in form.FieldNames)
            {
                Console.WriteLine(item.ToString());
                var radioOptions = form.GetButtonOptionValues(item);

                if (item.Contains("radio1"))
                {
                    var field1 = document.Form[item] as Aspose.Pdf.Forms.RadioButtonField;
                    var fieldoption = new Aspose.Pdf.Forms.RadioButtonOptionField();
                    fieldoption.OptionName = "Yes";
                    fieldoption.PartialName = "Yesname";

                    var updatedFragment = new Aspose.Pdf.Text.TextFragment("test123");
                    updatedFragment.TextState.Font = Aspose.Pdf.Text.FontRepository.FindFont("Arial");
                    updatedFragment.TextState.FontSize = 10;
                    updatedFragment.TextState.LineSpacing = 6.32f;

                    // Create TextParagraph object
                    var par = new Aspose.Pdf.Text.TextParagraph();

                    // Set paragraph position
                    par.Position = new Aspose.Pdf.Text.Position(field1.Rect.LLX, field1.Rect.LLY + updatedFragment.TextState.FontSize);
                    // Specify word wraping mode
                    par.FormattingOptions.WrapMode = Aspose.Pdf.Text.TextFormattingOptions.WordWrapMode.ByWords;

                    // Add new TextFragment to paragraph
                    par.AppendLine(updatedFragment);

                    // Add the TextParagraph using TextBuilder
                    var textBuilder = new Aspose.Pdf.Text.TextBuilder(document.Pages[1]);
                    textBuilder.AppendParagraph(par);

                    field1.DeleteOption("item1");
                }
            }

            // Save PDF document
            document.Save(dataDir + "RadioButtonField_out.pdf");
        }
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddingCaptionToRadioButtonField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Load source PDF form
    using var form = new Aspose.Pdf.Facades.Form(dataDir + "RadioButtonField.pdf");
    using var document = new Aspose.Pdf.Document(dataDir + "RadioButtonField.pdf");

    foreach (var item in form.FieldNames)
    {
        Console.WriteLine(item.ToString());
        var radioOptions = form.GetButtonOptionValues(item);

        if (item.Contains("radio1"))
        {
            var field1 = document.Form[item] as Aspose.Pdf.Forms.RadioButtonField;
            var fieldoption = new Aspose.Pdf.Forms.RadioButtonOptionField();
            fieldoption.OptionName = "Yes";
            fieldoption.PartialName = "Yesname";

            var updatedFragment = new Aspose.Pdf.Text.TextFragment("test123");
            updatedFragment.TextState.Font = Aspose.Pdf.Text.FontRepository.FindFont("Arial");
            updatedFragment.TextState.FontSize = 10;
            updatedFragment.TextState.LineSpacing = 6.32f;

            // Create TextParagraph object
            var par = new Aspose.Pdf.Text.TextParagraph();

            // Set paragraph position
            par.Position = new Aspose.Pdf.Text.Position(field1.Rect.LLX, field1.Rect.LLY + updatedFragment.TextState.FontSize);
            // Specify word wraping mode
            par.FormattingOptions.WrapMode = Aspose.Pdf.Text.TextFormattingOptions.WordWrapMode.ByWords;

            // Add new TextFragment to paragraph
            par.AppendLine(updatedFragment);

            // Add the TextParagraph using TextBuilder
            var textBuilder = new Aspose.Pdf.Text.TextBuilder(document.Pages[1]);
            textBuilder.AppendParagraph(par);

            field1.DeleteOption("item1");
        }
    }

    // Save PDF document
    document.Save(dataDir + "RadioButtonField_out.pdf");
}

그룹화된 체크박스 추가의 또 다른 변형

다음 코드 스니펫은 PDF 문서에 그룹화된 체크박스 필드를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddGroupedCheckBoxFieldsToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        var page = document.Pages.Add();

        var radioButtonField = new Aspose.Pdf.Forms.RadioButtonField(page);

        // Add radio button options and specify its position using Rectangle
        var opt1 = new Aspose.Pdf.Forms.RadioButtonOptionField(page, new Aspose.Pdf.Rectangle(50, 500, 70, 520));
        var opt2 = new Aspose.Pdf.Forms.RadioButtonOptionField(page, new Aspose.Pdf.Rectangle(100, 500, 120, 520));

        // Set option names for identification
        opt1.OptionName = "Option1";
        opt2.OptionName = "Option2";

        // Set the style of the radio buttons
        opt1.Style = Aspose.Pdf.Forms.BoxStyle.Square;
        opt2.Style = Aspose.Pdf.Forms.BoxStyle.Cross;

        // Configure the border of the first radio button
        opt1.Border = new Aspose.Pdf.Annotations.Border(opt1);
        opt1.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Dashed;
        opt1.Border.Width = 1;
        opt1.Characteristics.Border = System.Drawing.Color.Blue;

        // Configure the border of the second radio button
        opt2.Border = new Aspose.Pdf.Annotations.Border(opt2);
        opt2.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
        opt2.Border.Width = 1;
        opt2.Characteristics.Border = System.Drawing.Color.Black;

        radioButtonField.Add(opt1);
        radioButtonField.Add(opt2);

        // Add radio button field to the form object of the document
        document.Form.Add(radioButtonField);

        // Save PDF document
        document.Save(dataDir + "GroupedCheckboxFields_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddGroupedCheckBoxFieldsToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    var page = document.Pages.Add();

    var radioButtonField = new Aspose.Pdf.Forms.RadioButtonField(page);

    // Add radio button options and specify its position using Rectangle
    var opt1 = new Aspose.Pdf.Forms.RadioButtonOptionField(page, new Aspose.Pdf.Rectangle(50, 500, 70, 520));
    var opt2 = new Aspose.Pdf.Forms.RadioButtonOptionField(page, new Aspose.Pdf.Rectangle(100, 500, 120, 520));

    // Set option names for identification
    opt1.OptionName = "Option1";
    opt2.OptionName = "Option2";

    // Set the style of the radio buttons
    opt1.Style = Aspose.Pdf.Forms.BoxStyle.Square;
    opt2.Style = Aspose.Pdf.Forms.BoxStyle.Cross;

    // Configure the border of the first radio button
    opt1.Border = new Aspose.Pdf.Annotations.Border(opt1);
    opt1.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Dashed;
    opt1.Border.Width = 1;
    opt1.Characteristics.Border = System.Drawing.Color.Blue;

    // Configure the border of the second radio button
    opt2.Border = new Aspose.Pdf.Annotations.Border(opt2);
    opt2.Border.Style = Aspose.Pdf.Annotations.BorderStyle.Solid;
    opt2.Border.Width = 1;
    opt2.Characteristics.Border = System.Drawing.Color.Black;

    radioButtonField.Add(opt1);
    radioButtonField.Add(opt2);

    // Add radio button field to the form object of the document
    document.Form.Add(radioButtonField);

    // Save PDF document
    document.Save(dataDir + "GroupedCheckboxFields_out.pdf");
}

ComboBox 필드 추가

다음 코드 스니펫은 PDF 문서에 ComboBox 필드를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddComboBoxToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        document.Pages.Add();

        // Instantiate ComboBox Field object
        var combo = new Aspose.Pdf.Forms.ComboBoxField(document.Pages[1], new Aspose.Pdf.Rectangle(100, 600, 150, 616));

        // Add options to ComboBox
        combo.AddOption("Red");
        combo.AddOption("Yellow");
        combo.AddOption("Green");
        combo.AddOption("Blue");

        // Add combo box object to form fields collection of document object
        document.Form.Add(combo);

        // Save PDF document
        document.Save(dataDir + "ComboBox_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddComboBoxToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    document.Pages.Add();

    // Instantiate ComboBox Field object
    var combo = new Aspose.Pdf.Forms.ComboBoxField(document.Pages[1], new Aspose.Pdf.Rectangle(100, 600, 150, 616));

    // Add options to ComboBox
    combo.AddOption("Red");
    combo.AddOption("Yellow");
    combo.AddOption("Green");
    combo.AddOption("Blue");

    // Add combo box object to form fields collection of document object
    document.Form.Add(combo);

    // Save PDF document
    document.Save(dataDir + "ComboBox_out.pdf");
}

CheckboxField 추가

다음 코드 스니펫은 PDF 문서에 CheckboxField를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddCheckBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        var page = document.Pages.Add();

        // Create a field
        var checkboxField = new Aspose.Pdf.Forms.CheckboxField(page, new Aspose.Pdf.Rectangle(50, 620, 100, 650));
        checkboxField.Characteristics.Background = System.Drawing.Color.Aqua;
        checkboxField.Style = Aspose.Pdf.Forms.BoxStyle.Circle;

        // Add field to the form
        document.Form.Add(checkboxField);

        // Save PDF document
        document.Save(dataDir + "CheckboxField_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddCheckBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    var page = document.Pages.Add();

    // Create a field
    var checkboxField = new Aspose.Pdf.Forms.CheckboxField(page, new Aspose.Pdf.Rectangle(50, 620, 100, 650));
    checkboxField.Characteristics.Background = System.Drawing.Color.Aqua;
    checkboxField.Style = Aspose.Pdf.Forms.BoxStyle.Circle;

    // Add field to the form
    document.Form.Add(checkboxField);

    // Save PDF document
    document.Save(dataDir + "CheckboxField_out.pdf");
}

ListBoxField 추가

다음 코드 스니펫은 PDF 문서에 ListBoxField를 추가하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddListBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page to PDF file
        var page = document.Pages.Add();

        // Create a field
        var listBoxField = new Aspose.Pdf.Forms.ListBoxField(page, new Aspose.Pdf.Rectangle(50, 650, 100, 700));
        listBoxField.PartialName = "list";
        listBoxField.AddOption("Red");
        listBoxField.AddOption("Green");
        listBoxField.AddOption("Blue");
        // Add field to the form
        document.Form.Add(listBoxField);

        // Save PDF document
        document.Save(dataDir + "ListBoxField_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddListBoxFieldToPdf()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page to PDF file
    var page = document.Pages.Add();

    // Create a field
    var listBoxField = new Aspose.Pdf.Forms.ListBoxField(page, new Aspose.Pdf.Rectangle(50, 650, 100, 700));
    listBoxField.PartialName = "list";
    listBoxField.AddOption("Red");
    listBoxField.AddOption("Green");
    listBoxField.AddOption("Blue");
    // Add field to the form
    document.Form.Add(listBoxField);

    // Save PDF document
    document.Save(dataDir + "ListBoxField_out.pdf");
}

SignatureField 사용

다음 코드 스니펫은 SignatureField로 PDF 문서에 서명하는 방법을 보여줍니다.

.NET Core 3.1

private static void SignPdfBySignatureField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document(dataDir + "TextField.pdf"))
    {
        // Add page to PDF file	
        var page = document.Pages.Add();

        // Create a field
        var signatureField = new Aspose.Pdf.Forms.SignatureField(page, new Aspose.Pdf.Rectangle(100, 700, 200, 800));
        document.Form.Add(signatureField);

        var pkcs = new Aspose.Pdf.Forms.PKCS7("test1.pfx", "test1");
        pkcs.Date = new DateTime();
        pkcs.ContactInfo = "Test";
        pkcs.Location = "TestLocation";
        pkcs.Reason = "Verify";
        pkcs.ShowProperties = false;
        signatureField.Sign(pkcs);

        // Save PDF document
        document.Save(dataDir + "SignatureField_out.pdf");
    }
}

.NET 8

private static void SignPdfBySignatureField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Create PDF document
    using var document = new Aspose.Pdf.Document(dataDir + "TextField.pdf");

    // Add page to PDF file
    var page = document.Pages.Add();

    // Create a field
    var signatureField = new Aspose.Pdf.Forms.SignatureField(page, new Aspose.Pdf.Rectangle(100, 700, 200, 800));
    document.Form.Add(signatureField);

    var pkcs = new Aspose.Pdf.Forms.PKCS7("test1.pfx", "test1");
    pkcs.Date = new DateTime();
    pkcs.ContactInfo = "Test";
    pkcs.Location = "TestLocation";
    pkcs.Reason = "Verify";
    pkcs.ShowProperties = false;
    signatureField.Sign(pkcs);

    // Save PDF document
    document.Save(dataDir + "SignatureField_out.pdf");
}

양식 필드에 툴팁 추가

Document 클래스는 PDF 문서에서 양식 필드를 관리하는 Form이라는 컬렉션을 제공합니다. 양식 필드에 툴팁을 추가하려면 Field 클래스의 AlternateName을 사용합니다. Adobe Acrobat은 ‘대체 이름’을 필드 툴팁으로 사용합니다.

다음 코드 스니펫은 C#을 사용하여 양식 필드에 툴팁을 추가하는 방법과 Visual Basic을 사용하는 방법을 보여줍니다.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTooltipToField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using (var document = new Aspose.Pdf.Document(dataDir + "AddTooltipToField.pdf"))
    {
        // Set the tooltip for textfield
        if (document.Form["textbox1"] is Aspose.Pdf.Forms.Field field)
        {
            field.AlternateName = "Text box tool tip";
        }

        // Save PDF document
        document.Save(dataDir + "AddTooltipToField_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void AddTooltipToField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using var document = new Aspose.Pdf.Document(dataDir + "AddTooltipToField.pdf");

    // Set the tooltip for textfield
    if (document.Form["textbox1"] is Aspose.Pdf.Forms.Field field)
    {
        field.AlternateName = "Text box tool tip";
    }

    // Save PDF document
    document.Save(dataDir + "AddTooltipToField_out.pdf");
}