Understand that google does penalise for content duplication. At my site, I have a tutorial teaching some tricks. I also plan to copy exactly all the contents from the page into a pdf file. I plan to add more "exclusive info" & of cos affiliates on my pdf file. Will that penalise my site? Maybe a better question will be, if my pdf attachment link is on the same page, and is giving 100% the same info, does the text contents in the pdf gets crawled and hence slapped a penalty due to duplication?