Use of External Viewers

• The effort of the presenter is minimised.
• The "artistic integrity" of the original presentation is preserved. This can be important in some disciplines.

Some disadvantages include:

• Much of the power of the Web to enhance learning is foregone. For example, hyperlinks cannot be added directly into the classroom material.
• Browsing is limited. In our experience, typical "viewer" software can only offer "forward" and "backward" stepping through the document.
• The presentation of the material may be less than optimal for personal viewing (eg, inappropriate text size).