MaiPDF-Invisible Link

You need to Register your identifier

After Free Registration

Step 1:Sending the link to others
     add your personal identifier after "=":
     https://www.maipdf.com/6/?i=
         eg: adding XXX
     send link through email,IM,SMS


Step 2:Go to the Maipdf-result page
     


Step3:Check the Result
     eg:type "xxx" in the search box(in this page)