On Sun, May 11, 2014 at 3:20 PM, Ben Coman <b...@openinworld.com> wrote:
>
> I noticed that many of the figures are pdf, so I am really curious why this
> was done and not left as a JPG or PNG?  It may not matter for a book but it
> seems awkward if a html version is needed at some point. Also I added a
> .gitignore since `git status` showed way too much irrelevant info to be
> useful - and the PDF-figures prevent *.pdf being a filter (but *.pier.pdf is
> an effective alternative for our purpose).

- PDF is a vector graphics format.
- JPG and PNG are not.

http://en.wikipedia.org/wiki/Vector_graphics


-- 
Damien Cassou
http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without
losing enthusiasm."
Winston Churchill

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