How to recognize which plugin generated this code?

Question

I found the plugin by running a search for the string “text_dd” in the wp-content/plugins/ directory.

Looks like this specific plugin (which provides text_dd, column_dd and section_dd shortcodes) is called “dnd-shortcodes” and contains the following snippet of information:

Plugin Name: Drag and Drop Shortcodes
Plugin URI: http://themeforest.net/user/AB-themes?ref=AB-themes
Description: Visual drag and drop page builder containing great collection of animated shortcodes with paralax effects and video backgrounds
Version: 1.2.2
Author: Abdev
Author URI: http://themeforest.net/user/AB-themes?ref=AB-themes