PDFWrapper pdfWrapper = new PDFWrapper()
pdfWrapper.LoadPDF(pdfFileName);
pdfWrapper.ExportJpg(imgFileName, 1, 1, 20, 100);//这里可以设置输出图片的页数、大小和图片质量
int pdfPages = pdfWrapper.PageCount;
附件为PDFLibNet类库
https://files.cnblogs.com/dashi/PDFLibNet.rar
转载请注明出处:http://blog.csdn.net/dasihg/article/details/6770560