.NET實現在網頁中預覽Office文件的3個方法(3)_.Net教程
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#region 2.01 讀取pdf文件的總頁數 +GetPageCount(string pdf_filename)
/// <summary>
/// 讀取pdf文件的總頁數
/// </summary>
/// <param name="pdf_filename">pdf文件</param>
/// <returns></returns>
public static int GetPageCountByPDF(string pdf_filename)
{
int pageCount = 0;
if (System.IO.File.Exists(pdf_filename))
{
try
{
byte[] buffer = System.IO.File.ReadAllBytes(pdf_filename);
if (buffer != null && buffer.Length > 0)
{
pageCount = -1;
string pdfText = Encoding.Default.GetString(buffer);
Regex regex = new Regex(@"/Type\s*/Page[^s]");
MatchCollection conllection = regex.Matches(pdfText);
pageCount = conllection.Count;
}
}
catch (Exception ex)
{
Souxuexiao.API.Logger.error(string.Format("讀取pdf文件的總頁數執行GetPageCountByPowerPoint函數發生異常原因是:{0}", ex.Message));
}
}
return pageCount;
}
#endregion
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.Net教程-.NET實現在網頁中預覽Office文件的3個方法(3)
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