Metasploit - Embedding an Android Payload into a PDF?

Hi there my hacking mates,

I recently fell in love with metasploit and currently I'm into pentesting Android devices. I already managed to drop an android meterpreter shell with help of an .apk, but I'd like to take it a step further.

Since there are quite a few ways (and exploits) for PDF documents for Windows, I was wondering if there is a way to embed an android meterpreter payload into an PDF.

I found a fileformat PDF exploit for Android devices in the Metasploit framework, but sadly I wasn't able to get it to work with an android meterpreter payload.

Is there a way to embed such a payload inside a PDF document, so when the user opens the PDF on their Android we will get a meterpreter session?

-B1337