Tested with redmine 1.4.5 and ruby 1.8.7_p370.
Install:
- git clone into redmine to plugins directory
- gem install nokogiri
- rake redmine:plugins:migrate RAILS_ENV=production
- restart redmine
Usage:
{{pdf(pdfspecifier[,<height>])}}
For external urls use the complete http url:
{{pdf(http://website.de/sample.pdf)}}
But you can also use the wiki specifiers (http://www.redmine.org/help/wiki_syntax_detailed.html):
{{pdf(export:some/file.pdf)}}{{pdf(attachment:file.pdf)}}
Any other wiki syntax like source:some/file.pdf doesn't really make sense as they are not pointing to the raw pdf file.