Many different types of software can benefit from the unique advantages of pen-based annotation. A user annotates by writing with a pen on top of an existing document, as though on an overlaying transparent sheet. This allows adding to the document free-form writing such as notes, diagrams, review comments, questions, and so forth.

Unless evident by the context, an application should prompt the user to identify a position in the document to attach the annotation. This prevents the annotation from drifting from its intended location if the underlying document is changed.

Often, annotated text remains unrecognized, captured as ink data. Reduce such text to display resolution to minimize the file space it occupies. For more information on how to achieve maximum compression of handwritten text, see "Converting Data to Display Resolution" in Chapter 4.

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Delphi Components
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Software for Android Developers
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Unix Manual Pages
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Amazon Categories Database
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