PdfOperator/FrmImgToPdf.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using iTextSharp.text;
using iTextSharp.text.pdf;

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

        /// <summary>
        /// 打开转换的pdf
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOpenPdf_Click(object sender, EventArgs e)
        {
            //判断文件是否存在
            if (!System.IO.File.Exists(txtSavePath.Text))
            {
                return;
            }
            else
            {
                //存在文件
                System.Diagnostics.Process.Start(txtSavePath.Text);
            }
        }

        /// <summary>
        /// 选择图片
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnSelectImgs_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFiles = new OpenFileDialog();
            openFiles.Multiselect = true;
            openFiles.Filter = "图片|*.png;*.jpg;*.jpeg;*.bmp";
            if (openFiles.ShowDialog() == DialogResult.OK)
            {
                string[] filenames = openFiles.FileNames;
                Array.Sort(filenames);
                foreach (string filename in filenames)
                {
                    lstBoxFileList.Items.Add(filename);
                }