Mainly to solve two problems, anti download, watermark session. This is the user name refers to watermark floating, rather than fixed watermark logo.
1, PDF documents
PDF documents online browsing protection, anti-download online browsing, file off the ground, disable printing, save ban, prohibit copy the text, add dynamic anti screenshot watermark; built-in PDF parsing engine can operate independently, without any other specific PDF software support.
2, online video player
By anti-hotlinking, url authentication, video and other multi-level security encryption to fully protect the safety video.
HLS encrypted video, dynamic playback address, video segments, open HLS encryption, for HLS format video transcoding encrypted, only support player to play HLS stream to play.
Anti-theft chain mechanism can prevent unauthorized users get the URL to download, play video, but can not prevent malicious users pay to download videos to the local post-secondary distribution. Therefore, in order to effectively prevent leakage and video hotlinking problem, HLS encrypted video content, video encrypted, even if a malicious user to download it is difficult to distribute it to other people to watch.
Reference documents:
http://www.drmsoft.cn/webtest/pdfonline.asp
Video on Demand: https://www.huaweicloud.com/product/vod.html