[操作pdf文档]之C#判断pdf文档的页数:
/// <summary> /// 获取pdf文档的页数 /// </summary> /// <param name="filePath"></param> /// <returns>-1表示文件不存在</returns> public static int GetPDFofPageCount(string filePath) { int count = -1;//-1表示文件不存在 if (File.Exists(filePath)) { using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read)) { StreamReader reader = new StreamReader(fs); //从流的当前位置到末尾读取流 string pdfText = reader.ReadToEnd(); Regex rgx = new Regex(@"/Types*/Page[^s]"); MatchCollection matches = rgx.Matches(pdfText); count = matches.Count; } } return count; }
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