有必要来标记文档，如果是受版权保护或示例复制。Acrobat…
专业的隐写术 & 水印 SW-图像/音频/视频/Adobe/闪光灯支持-主页…
PDF Security OwnerGuard is the ultimate Digital Rights Management (DRM),…
Professional Steganography & Watermarking SW - Image/Audio/Video/Adobe/Flash…
PDF Champ is the great utility that helps to unlock PDF files, Lock PDF…
ParmisPDF is the perfect PDF software with the ability to perform wide…
Video to EXE Converter, Encrypt and convert video to exe with password…
You can print the desired watermark on the screen. This screen watermark…
Audio Watermarking Tools 2 (AWT2) of www.audiowatermarking.info are software…
This software offers a solution to users who want to add page numbers…
