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* Documents: pdf, ppt
* Documents: pdf, ppt
Movies (e.g., in the avi format) should be converted to png or gif first, using e.g.
Movies (e.g., in the avi format) should be converted to png or gif first, using e.g.
[http://www.imagemagick.org/Usage/video/ Imagemagick] (often available on unix systems).
[http://www.imagemagick.org/Usage/video/ ImageMagick] (often available on unix systems).