A sample Rails 3 app using Transloadit, Paperclip and S3 to manage images. Instructions - check out the project - cp config/s3.yml.example config/s3.yml and add your Amazon credentials - Goto https://transloadit.com/templates/add and put in something like this { "steps": { "store": { "robot": "/s3/store" , "bucket": "transloadit-paperclip-example" , "path": "avatars/${unique_prefix}/original/${file.urlName}" , "key": "YOURSECRETACCESSID" , "secret": " YOUR-secRE/TACCe\ssKEy" } } } - save the template and copy the template id - cp config/transloadit.yml.example config/transloadit.yml and add the template id you just created and your Auth Key found on this page https://transloadit.com/accounts/credentials TODO - add resizing examples - add authentication