Several formats allow you to store non-image data such as comments, tags, and markers. These are discussed in more detail in the following topics:

Types of File Comments

Working with Markers

Implementing TIFF Comments and Tags

In addition, you can also add text or file messages to bitmaps. To add a message to a bitmap, use the AddMessageCommand a message that has been added using the AddMessageCommand can be retrieved using the ExtractMessageCommand