using Spire.Pdf;
 
namespace FlattenAllFormFields
{
    class Program
    {
        static void Main(string[] args)
        {
            //加載PDF文件
            PdfDocument pdf = new PdfDocument();
            pdf.LoadFromFile("PDF表單.pdf");
 
            //設(shè)置所有表單不可編輯
            pdf.Form.IsFlatten = true;
 
            //保存生成文件
            pdf.SaveToFile("扁平PDF.pdf");
        }
    }
}

            //獲取PDF表單
            PdfFormWidget formWidget = (PdfFormWidget)pdf.Form;
 
            //通過(guò)表單名獲取指定表單域
            PdfField form = formWidget.FieldsWidget["姓名"];
 
            //通過(guò)索引獲取指定表單域
            PdfField form = formWidget.FieldsWidget.List[0] as PdfField;
 
            //設(shè)置表單不可編輯
            form.Flatten = true;

using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Widget;
using System.IO;
using System.Text;
 
namespace ExtractFormFieldValues
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //加載PDF文件
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile("PDF表單.pdf");
 
            //創(chuàng)建StringBuilder對(duì)象
            StringBuilder sb = new StringBuilder();
 
            //獲取PDF表單
            PdfFormWidget formWidget = doc.Form as PdfFormWidget;
 
            //遍歷表單
            for (int i = 0; i < formWidget.FieldsWidget.List.Count; i++)
            {
                PdfField field = formWidget.FieldsWidget.List[i] as PdfField;
 
                //獲取文本框的名稱和值
                if (field is PdfTextBoxFieldWidget)
                {
                    PdfTextBoxFieldWidget textBoxField = field as PdfTextBoxFieldWidget;
                    string name = textBoxField.Name;
                    string value = textBoxField.Text;
                    sb.Append("文本框名稱: " + name + "\r\n");
                    sb.Append("文本框內(nèi)容: " + value + "\r\n");
                }
 
                //獲取列表框的名稱、項(xiàng)目和選定項(xiàng)
                if (field is PdfListBoxWidgetFieldWidget)
                {
                    PdfListBoxWidgetFieldWidget listBoxField = field as PdfListBoxWidgetFieldWidget;
                    string name = listBoxField.Name;
                    sb.Append("列表框名稱: " + name + "\r\n");
                    sb.Append("列表框項(xiàng)目: \r\n");
 
                    PdfListWidgetItemCollection items = listBoxField.Values;
 
                    foreach (PdfListWidgetItem item in items)
                    {
                        sb.Append(item.Value + "\r\n");
                    }
                    string selectedValue = listBoxField.SelectedValue;
                    sb.Append("列表框選定項(xiàng): " + selectedValue + "\r\n");
                }
 
                //獲取組合框字段的名稱、項(xiàng)目和選定項(xiàng)
                if (field is PdfComboBoxWidgetFieldWidget)
                {
                    PdfComboBoxWidgetFieldWidget comBoxField = field as PdfComboBoxWidgetFieldWidget;
                    string name = comBoxField.Name;
                    sb.Append("組合框名稱: " + name + "\r\n");
                    sb.Append("組合框項(xiàng)目: \r\n");
                    PdfListWidgetItemCollection items = comBoxField.Values;
 
                    foreach (PdfListWidgetItem item in items)
                    {
                        sb.Append(item.Value + "\r\n");
                    }
                    string selectedValue = comBoxField.SelectedValue;
                    sb.Append("組合框選定項(xiàng): " + selectedValue + "\r\n");
 
                }
 
                //獲取單選按鈕的名稱和所選項(xiàng)
                if (field is PdfRadioButtonListFieldWidget)
                {
                    PdfRadioButtonListFieldWidget radioBtnField = field as PdfRadioButtonListFieldWidget;
                    string name = radioBtnField.Name;
                    sb.Append("單選按鈕名稱: " + name + "\r\n");
                    string selectedValue = radioBtnField.SelectedValue;
                    sb.Append("單選按鈕選定項(xiàng): " + selectedValue + "\r\n");
                }
 
                //獲取復(fù)選框的名稱和狀態(tài)
                if (field is PdfCheckBoxWidgetFieldWidget)
                {
                    PdfCheckBoxWidgetFieldWidget checkBoxField = field as PdfCheckBoxWidgetFieldWidget;
                    string name = checkBoxField.Name;
                    sb.Append("復(fù)選框名稱: " + name + "\r\n");
                    bool status = checkBoxField.Checked;
                    if (status)
                    {
                        sb.Append("復(fù)選框狀態(tài): 已選中 \r\n");
                    }
                    else
                    {
                        sb.Append("復(fù)選框狀態(tài): 未選中 \r\n");
                    }
                }
 
                sb.Append("\n");
            }
 
            //將提取的數(shù)據(jù)寫入txt文件
            File.WriteAllText("提取PDF表單.txt", sb.ToString());
            doc.Dispose();
        }
    }
}