pdf去除水印的vc实现,用vc开发pdf方向的可参看-pdf remove watermark vc realized, with vc the direction of development may be found in pdf

对PDF操作能够批量修改,当下载的PDF具有水印的时候，一般软件不能批量更改，此软件就实现了这个功能-Bulk of the PDF can be modified to operate, when to download the PDF with the watermark when the volume can not change the general software, the software has this feature on

MWT and EMD embedding watermark in image