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JES Extensifier lets users:

  • Edit image description extensions of QuickTime movies: (interlacing, color, clipping, scaling)
  • Add/edit the timecode track

What's New

Version 3.0:
  • Modern 64-bit app built with Swift and Cocoa


  • OS X 10.5 or later

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JES Extensifier User Discussion

5 2


Current Version (3.x)


Downloads 7,059
Version Downloads 443
License Free
Date 11 Jul 2017
Platform Intel 64 / OS X
Price Free
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