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


namespace?PDF
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????int?iPageNum;
????????string?filePath?=?““;
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????if?（filePath?==?““）
????????????{
????????????????MessageBox.Show（“選擇PDF文件無效！“?“文件無效！“）;
????????????}
????????????else
????????????{
????????????????if?（numericUpDownEndPageNum.Value?>?iPageNum）
????????????????{
????????????????????Mess

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-01-14?17:06??PDF拆分\
?????目錄???????????0??2019-01-14?17:06??PDF拆分\.vs\
?????目錄???????????0??2019-01-14?17:09??PDF拆分\.vs\PDF\
?????目錄???????????0??2019-01-14?17:09??PDF拆分\.vs\PDF\DesignTimeBuild\
?????文件??????????98??2019-01-14?17:09??PDF拆分\.vs\PDF\DesignTimeBuild\.dtbcache
?????目錄???????????0??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\
?????文件???????40960??2019-01-14?17:09??PDF拆分\.vs\PDF\v15\.suo
?????目錄???????????0??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\Server\
?????目錄???????????0??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\Server\sqlite3\
?????文件???????????0??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\Server\sqlite3\db.lock
?????文件????????4096??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\Server\sqlite3\storage.ide
?????文件???????32768??2019-01-14?17:06??PDF拆分\.vs\PDF\v15\Server\sqlite3\storage.ide-shm
?????文件??????840512??2019-01-14?17:07??PDF拆分\.vs\PDF\v15\Server\sqlite3\storage.ide-wal
?????目錄???????????0??2019-01-14?17:07??PDF拆分\PDF\
?????文件?????????851??2018-02-08?20:15??PDF拆分\PDF.sln
?????文件???????19968??2018-06-11?03:51??PDF拆分\PDF.suo
?????文件?????????144??2018-02-08?20:15??PDF拆分\PDF\app.config
?????目錄???????????0??2018-02-23?18:05??PDF拆分\PDF\bin\
?????目錄???????????0??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\
?????目錄???????????0??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\app.publish\
?????文件???????13320??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\app.publish\PDF.exe
?????文件?????4059136??2016-10-07?20:40??PDF拆分\PDF\bin\Debug\itextsharp.dll
?????文件????????1791??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\PDF.application
?????文件???????12288??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\PDF.exe
?????文件?????????144??2018-02-08?20:15??PDF拆分\PDF\bin\Debug\PDF.exe.config
?????文件????????4000??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\PDF.exe.manifest
?????文件???????22016??2019-01-14?17:07??PDF拆分\PDF\bin\Debug\PDF.pdb
?????文件????????1791??2018-06-11?03:50??PDF拆分\PDF\bin\Debug\PDF.vshost.application
?????文件???????11600??2018-06-11?03:51??PDF拆分\PDF\bin\Debug\PDF.vshost.exe
?????文件?????????144??2018-02-08?20:15??PDF拆分\PDF\bin\Debug\PDF.vshost.exe.config
?????文件????????4011??2018-06-11?03:50??PDF拆分\PDF\bin\Debug\PDF.vshost.exe.manifest
............此處省略34個文件信息