Go grab this free tool for Unreal that adds support for exporting PNG files from textures in the content browser.

Technical Details

Features:

• Supports Gray and RGB(A) Formats
• Supports 8-bit and 16-bit
• Full source included.
• Lightweight

Code Modules:

•     ST_ExportPNGEditor [Editor – 2 Classes]

Please note that the tool supports all development platforms. You can learn more here.

Get the tool