title: Image compression, carrierwave and heroku
body: <p>we're trying to compress the images we serve up on our site. We use carrierwave and asset_sync to serve our assets from S3 and Cloudfront.</p>
  
  <p>The main issue we're now facing in terms of site performance is image compression. What is the best way of going about this? We've found a couple of compression tools (jpegoptim, pingcrush) that may work well - but we're not sure how to set these up on Heroku.</p>
  
  <p>Right now, we are not compressing our images at all and we definitely want to fix that so any help on this front would be much appreciated.</p>
  
  <p>Thanks!
  Ringo</p>