This is slightly broken because the SPIE plugin removes more than just
watermarks. For some reason it seems to also remove images and large
blocks of text from the paper. However, the object that is being removed
is tiny. In the unit testing sample, the removed object is pdf stream
55.
For now, SPIE is partially disabled until this is fixed. The problem
does not originate from the other plugins.
fixes#20
The deflate function expands some of the FlateDecode streams in a pdf
file. The output of the deflate function is not always correct and it is
very buggy. Still, this is a useful tool to poke around in foreign pdfs
under investigation.
