This is a paid asset, but now you can download proSreenShot Solution for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
For more detail this asset from the Unity Asset Store: Click Here
proSreenShot Solution v1.28 (Latest version)
“If possible, please buy the package to support the developer”
proScreenShot is a fully customizable solution for making editor or in-game screenshots.
Platforms – Supports all platforms.
Blend Textures – Blend textures on the screenshots (logos, watermarks, frames, etc).
Fully Customizable – Configure within editor or Scripting API.
Ignore Objects – Set a list of objects that you don’t want to go into the screenshot.
Formats – Set custom encodings, file formats, blend types, custom resolution.
Easy Naming and other – Custom names, add data time to file, randomize, add screenshot sound.
Albums – It will automatically make a history of screenshots for you to easy make screenshot albums and manipulate them.
Open source, examples, documentation!
See Documentation for more details.
For more tools and information visit proUnity Tools
Unity 4.6+ & 5.1+ support!
Very easy to use, enjoy!