cordova plugin add https://github.com/SimarSima/CordovaAndroidShowPDFPlugin.git
Or
cordova plugin add git://github.com/SimarSima/CordovaAndroidShowPDFPlugin.git
Or Install from local
git clone https://github.com/SimarSima/CordovaAndroidShowPDFPlugin.git
cordova plugin add "your patch"
The path of PDF must not be a absolute path.Like “/stroage/XXXXXXX”