I use wkhtmltopdf with django-wkhtmltopdf and I think I have incorrectly serving static files. If I run wkhtmltopdf from the console are properly collected static files and generates a good pdf file:
wkhtmltopdf http://127.0.0.1:8000/dash/test/ test.pdf
"GET /static/base/js/jquery.js HTTP/1.1" 200 93106
"GET /static/base/css/bootstrap.css HTTP/1.1" 200 119892
"GET /static/base/js/bootstrap.min.js HTTP/1.1" 200 27726
"GET /static/dash/css/flot.css HTTP/1.1" 200 1810
"GET /static/dash/js/jquery.flot.categories.js HTTP/1.1" 200 6033
"GET /static/dash/js/jquery.flot.js HTTP/1.1" 200 119052
However, if the generated PDF file from your application using django-wkhtmltopdf I have only:
"GET /dash/test/ HTTP/1.1" 200 13246004
And the generated PDF file looks like this:

Static files in settings.py I have set up as follows:
MEDIA_ROOT = ''
MEDIA_URL = ''
STATIC_ROOT = '/Users/malt/Django/env/app/static/'
STATIC_URL = '/static/'
STATICFILES_DIRS = ( )
STATICFILES_FINDERS = ( )
What else should I check?