All I wanted was a website where I could place a screenshot of an app to share it with friends and family. After a little googling, I came across the site called MockUPhone (https://mockuphone.com/) It is very easy to use and very straight forward. It generated a very high definition file that looked very professional.
Highly recommended for app developers and for people who want to create mockups quickly.
Google Search phrase: paste picture into mobile play store screenshot
Zakaria Bin Abdur Rouf 