add try to get pdf if you do not have it
authorJohn Kitchin <jkitchin@andrew.cmu.edu>
Sun, 25 Jan 2015 16:36:12 +0000 (11:36 -0500)
committerJohn Kitchin <jkitchin@andrew.cmu.edu>
Sun, 25 Jan 2015 16:36:12 +0000 (11:36 -0500)

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