利用itextsharp.dll读取pdf文件

首先引用itextsharp.dll

　　　　　PdfReader pdfRead = new PdfReader(path); 

                StringBuilder NavDataStr = new StringBuilder();

                //数据总页数

                int pageNums = pdfRead.NumberOfPages;

                for (int i = 0; i < pageNums; i++)

                {

                    NavDataStr.Append(PdfTextExtractor.GetTextFromPage(pdfRead, i + 1, new SimpleTextExtractionStrategy()) + "\n"); //页码从1开始

                }

                pdfRead.Close();