Use the following instructions to improve rendering of oriental characters in your Flash presentation:
Click the Publish button on the iSpring Pro toolbar in your PowerPoint:
Make sure that the Streamline (AS3) player is selected in the Player Template section. Click the Customize button next to it.
In the Customize Player window opened, select Messages in the top left-hand drop-down menu.
In the Messages window, enable the checkbox "Use Unicode Font". Click OK to save settings and close the customization window.
The final step is publishing your presentations to Flash format. If you have already published your presentation to Flash, you need to convert it again in order to apply new settings:
Now iSpring will use Unicode font for better rendering of oriental characters used in your PowerPoint presentation. To keep crisp look of your texts, we recommend you not to use bold style when Unicode font is enabled.