PdfOperator/FrmPdfCut.cs

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using Spire.Pdf;
using Spire.Pdf.Graphics;
using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace PdfOperator
{
    public partial class FrmPdfCut : Form
    {
        public FrmPdfCut()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 选择PDF文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOpenfile_Click(object sender, EventArgs e)
        {
            OpenFileDialog fileDialog = new OpenFileDialog();
            fileDialog.Title = "打开PDF";
            fileDialog.Filter = "pdf文件|*.pdf";
            if (fileDialog.ShowDialog() == DialogResult.OK)
            {
                string name = fileDialog.FileName;
                txtFilePath.Text = name;
            }
        }

        /// <summary>
        /// 退出
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        /// <summary>
        /// 按页分割方式
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void rdoUsePage_CheckedChanged(object sender, EventArgs e)
        {
            if (rdoUsePage.Checked == true)
            {
                txtStartPage.Enabled = true;
                txtEndPage.Enabled = true;
            }
        }

        /// <summary>
        /// 单页分割方式
        /// </summary>