Customization.

2 min → Action Hooks Reference 3 min → How to use actions & filters hook? 1 min → How to add custom font into template? 1 min → Japanese, Chines or CJK language support 1 min → How to change footer font size 3 min → How WPML Integrates with Challan for Multi-Language 3 min → How to Translate Challan PDF invoices with WPML 4.0 or higher 1 min → How to Customize the Product Column in the Invoice?