I am glad I could be of help to you. It is fun for me as well to learn a new set of skills.
I encourage you to check out the Glide Library
There are many great tutorial videos and lots of information for you to make it your own. It is a great feeling too 
Iād like to see what @ThinhDinh has to say when he wakes up 
Make a new profile before adding pictures and all the uploads will be stored under that user. You can navigate to the user by going to the home tab.
In this setup the user could just keep submitting pictures and in the end you could make one pdf.
okay great can you share the app
The app is copyable
just a moment
Glide is down at the moment.
