No result output

[1a1a11a]

no result output, only shows

<?xml version="1.0"?>
<pdf/> 

in terminal, tries several pdf files, all show the same, any idea how to fix it?

[1a1a11a]

pdf-extract: 0.1.1
pdf-reader: 1.1.1
ruby: 2.2.0

[robinwalter]

I had the same problem.

I had made a space between "-- references" instead of "--references". Then it worked :-)

Robin