How Can I Merge Two Different Package(.apk ) In An Android Application?

I want to implement PDF viewer in my Android application. My application has option of reading some document and I want to open those doc in PDF by default. My application .apk is

Solution 1:

If you don't have the code for both projects it's not really possible to merge them into a single project. You can call the PDF Viewer from your application using Intents.