First of all, MaiPDF offers its free PDF DRM to the public,we appreciate your Donation!
MaiPDF Encryptor uses the strongest possible industry-standard encryption to protect your documents from copying and forwarding, online and offline, before and after delivery. Our access controls go a step further by enabling document expiration, location-based access, and printing restrictions. Importantly, your documents and the keys to them never leave your possession.
A strong document security system is worthless if your authorized users can't access their documents. Because MaiPDF is designed to operate within industry-standard viewers, users seldom run into problems with secured documents being blocked by antivirus and other firewall software since it is based on HTML(simple web pages). Users do NOT need to download any plugin or software,both online and offline DRM-PDF are able to be opened in any modern Browsers.