pdf查看器源码，很不错!!!可查看PDF文件，包括加密的PDF文件，并可根据内容生成文本和图片。。。。

All of these files must be in the same directory as PDFView.dll The tessdata folder and all of it's contents must be in the same directory as tessnet2.dll If you are running 64 bit, please replace the DLLs here with their 64 bit versions from the x64 directory.