There are 10 pdf files in all, all printed using dopdf - http://www.dopdf.com
The pdfs are based on a Mix and Gap file containing the text, which is also included (mtx3). This file provides a wide variety of interactive exercises for use with PCs or with an interactive whiteboard. It requires TaskMagic3. If you haven't got TaskMagic3, you can download a 30-day trial from the TaskMagic website (doesn't require registration or anything - just download and install it).
If you've previously trialled TM3 and would like to trial it again, that's now possible by arrangement. Also, if you'd like to arrange a longer trial period, that's now possible too. See the information at the bottom of the page at http://www.mdlsoft.co.uk/trialdownloads.htm
See these extensive video tutorials on how to exploit your own text (song, poem, story, news article etc) using the Mix and Gap component of TaskMagic.
See this video tutorial on getting started with Mix and Gap and an introduction to the automatically generated exercises in Mix and Gap:
See this video tutorial which gives a brief introduction to the 7 non-auto-generated exercises in Mix and Gap:
SEE THESE DETAILED VIDEO TUTORIALS on all aspects of creating your own Mix and Gap files to exploit all sorts of texts in TaskMagic3 (by creating interactive exercises and worksheets).