How to set Paperclip to process original image?

问题

Using Paperclip Gem in a Rails 4 project to attach an image and then clean out all exif data, like this:

  has_attached_file :image,
    styles: lambda{ |a|
                          { 
                            large:      ['800x', :png],
                            thumb_340:  ['340x340#', :png],
                            thumb_180:  ['180x180#', :png]
                          }
                  },
    convert_options: { all: '-strip' }

Problem is, convert_options isn't getting called on the original image. What's the best method for reprocessing (or pre-processing) the original to make sure that '-strip' gets called?

回答1:

try this

has_attached_file :image,
styles: lambda{ |a|
                      { 
                        original: {convert_options: '-strip'},
                        large:      ['800x', :png],
                        thumb_340:  ['340x340#', :png],
                        thumb_180:  ['180x180#', :png]
                      }
              }

来源：https://stackoverflow.com/questions/35415482/how-to-set-paperclip-to-process-original-image