Focussing In On Picture Cropping With PowerPoint

Before the development of computer software to aid picture manipulation, designers were known to use two L-shaped pieces of black card to visualise a picture crop. The two shapes could be placed over an illustration or photograph to create a moveable frame. The cards were then easy to move in unison to create an area to focus in on - or a crop. Imagine the movie director visualising a frame with their hands on the set of a film - it is the same principal that designers and editors apply to still photographs.

The full article appears here:
http://www.microsofttraining.net/article-682-focussing-in-on-picture-cropping-with-powerpoint.html

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