Read more

CarrierWave: How to remove GIF animation

Arne Hartherz
December 22, 2014Software engineer at makandra GmbH

When accepting GIF images, you will also accept animated GIFs. Resizing them can be a time-consuming task and will block a Rails worker until the image is processed.

Illustration UI/UX Design

UI/UX Design by makandra brand

We make sure that your target audience has the best possible experience with your digital product. You get:

  • Design tailored to your audience
  • Proven processes customized to your needs
  • An expert team of experienced designers
Read more Show archive.org snapshot

Save yourself that trouble, and simply tell ImageMagick to drop any frames but the first one.

Add the following to your uploader class:

process :remove_animation

private

def remove_animation
  if content_type == 'image/gif'
    manipulate! { |image| image.collapse! }
  end
end

You may also define that process for specific versions only (e.g. only for thumbs) -- when called on the class level, it will happen for each version.

Posted by Arne Hartherz to makandra dev (2014-12-22 13:36)