About font substitution for missing East Asian characters
The feature or some of the options described in this Help topic are only available if support for Japanese, Simplified Chinese, Traditional Chinese, or Korean is enabled through Microsoft Office Language Settings.
If the font you are using does not contain a particular character, and you have cleared the Automatically substitute font for missing East Asian characters option (Tools menu, Options command, Edit tab), you will see a small box in place of the missing character wherever that character occurs in your text.
When you turn on this type of font substitution (also called font linking), Microsoft Publisher automatically applies a substitute font to the missing East Asian character. By default, the Automatically substitute font for missing East Asian characters option is turned on. It is recommended that you leave this option turned on if you are going to print your publication from your own computer.
If you plan to take your publication to another computer or to a commercial printer, however, it is best to turn off automatic font substitution before you type any text into the publication. Then, whenever you see the small box instead of the missing character, you can manually substitute the small box with another font that contains the character you want. To prevent a commercial printer or any other user from applying font substitution to the characters in your publication, you should embed the fonts in your publication before sending it out to be printed.