C# PDF Page操作设置页面切换按钮的方法

using Spire.Pdf;
using Spire.Pdf.Actions;
using Spire.Pdf.Fields;
using Spire.Pdf.Graphics;
using System.Drawing;
namespace ButtonToAppointedPage_PDF
{
 class Program
 {
 static void Main(string[] args)
 {
  //实例化PdfDocument类，加载PDF测试F文档
  PdfDocument doc = new PdfDocument();
  doc.LoadFromFile("sample.pdf");
  //允许添加Form
  doc.AllowCreateForm = true;
  //获取文档最后一页
  PdfPageBase lastPage = doc.Pages[doc.Pages.Count - 1];
  //在页面指定位置添加指定大小的按钮
  PdfButtonField button = new PdfButtonField(lastPage, "Click To Back ");
  button.Bounds = new RectangleF(lastPage.ActualSize.Width - 150, lastPage.ActualSize.Height - 400, 60, 20);
  //设置按钮边框颜色
  button.BorderStyle = PdfBorderStyle.Solid;
  button.BorderColor = new PdfRGBColor(Color.White);
  //设置按钮背景色
  button.BackColor = Color.Azure;
  //设置按钮提示语 
  button.ToolTip = "To the first page";
  //设置按钮文字字体和颜色 
  PdfTrueTypeFont trueTypeFont = new PdfTrueTypeFont(new Font("Avant Garde", 9f), true);
  button.Font = trueTypeFont;
  button.ForeColor = Color.Black;
  //创建PdfNamedAction实例，在传入的参数中选择上一页、下一页、首页或最后一页
  PdfNamedAction namedAction = new PdfNamedAction(PdfActionDestination.FirstPage);
  //应用动作
  button.Actions.MouseDown = namedAction;
  //添加按钮到文档
  doc.Form.Fields.Add(button);
  //保存并打开PDF文档
  doc.SaveToFile("result.pdf", FileFormat.PDF);
  System.Diagnostics.Process.Start("result.pdf");
 }
 }
}

using Spire.Pdf;
using Spire.Pdf.Actions;
using Spire.Pdf.Fields;
using Spire.Pdf.General;
using Spire.Pdf.Graphics;
using System.Drawing;
namespace Buttom2
{
 class Program
 {
 static void Main(string[] args)
 {
  //实例化PdfDocument类，加载PDF文档
  PdfDocument doc = new PdfDocument();
  doc.LoadFromFile("sample.pdf");
  //允许添加Form
  doc.AllowCreateForm = true;
  //获取最后一页
  PdfPageBase lastPage = doc.Pages[doc.Pages.Count - 1];
  //在页面指定位置添加按钮
  PdfButtonField button = new PdfButtonField(lastPage, "Back");
  button.Bounds = new RectangleF(lastPage.ActualSize.Width - 150, lastPage.ActualSize.Height - 700, 50, 20);
  //设置按钮边框颜色
  button.BorderStyle = PdfBorderStyle.Solid;
  button.BorderColor = new PdfRGBColor(Color.Transparent);
  //设置按钮背景色
  button.BackColor = Color.WhiteSmoke;
  //设置按钮提示语 
  button.ToolTip = "Click and back to the third page";
  //设置按钮文字字体和颜色 
  PdfTrueTypeFont trueTypeFont = new PdfTrueTypeFont(new Font("Avant Garde", 9f), true);
  button.Font = trueTypeFont;
  button.ForeColor = Color.Black;
  //实例化PdfDestination对象，传入指定页码到第3页
  PdfDestination destination = new PdfDestination(doc.Pages[2]);
  //创建go to动作
  PdfGoToAction goToAction = new PdfGoToAction(destination);
  //应用动作
  button.Actions.MouseDown = goToAction;
  //添加按钮到文档
  doc.Form.Fields.Add(button);
  //保存并打开PDF文档
  doc.SaveToFile("result.pdf", FileFormat.PDF);
  System.Diagnostics.Process.Start("result.pdf");
 }
 }
}