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Welcome to the
official website of
The Extended Colophon
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1. Calculate Tree Per Book

Width mm Height mm Pages Tree Per Book

2. Calculate Tree Total Edition

Total Edition Tree Per Book Trees Total Edition

3. Calculate Weight Total Edition

Trees Entire Edition Weight Total Edition

4. Water Usage & kWh of Paper Production

Weight Total Edition Liters kWh
Try the calculators to discover some
of the extended parameters yourself