Installing this plugin can increase productivity drastically and reduce the time required to take a screenshot, save it as a file, upload it to Redmine, and then add it as an image.
You need server administrator permissions and git installed on the server.
In order to start using this, paste images from the clipboard plugin following these steps:
git clone git://github.com/credativUK/redmine_image_clipboard_paste.git plugins/redmine_image_clipboard_paste
bundle exec rake redmine:plugins:migrate RAILS_ENV=production