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    <p>IMGKIT reqiured css with absolute url for any background image or other assets. So you can generate it dynamically following this link <a href="https://coderwall.com/p/exj0ig" rel="nofollow">https://coderwall.com/p/exj0ig</a> and some steps as</p> <p><strong>A)</strong> Put your all images in assets/images folder of rails app</p> <p><strong>B)</strong> Install gem 'sass-rails' if not install <a href="https://github.com/rails/sass-rails" rel="nofollow">https://github.com/rails/sass-rails</a></p> <p><strong>C)</strong> create another css file name as css_file_name.css.sccs.erb</p> <p><strong>D)</strong> put your all other css file content in it.</p> <p><strong>E)</strong> In css file just put your image file name as below: background-image: image-url('image.png');</p> <p><strong>F)</strong> Use assets pipline (<a href="http://guides.rubyonrails.org/asset_pipeline.html#how-to-use-the-asset-pipeline" rel="nofollow">http://guides.rubyonrails.org/asset_pipeline.html#how-to-use-the-asset-pipeline</a>) Run below command as your app mode: (1) Development Mode: RAILS_ENV=development bundle exec rake assets:precompile (2) Production Mode: RAILS_ENV=production bundle exec rake assets:precompile</p> <p><strong>G)</strong> In your config/environments/</p> <p>(1) In development.rb config.action_controller.asset_host = "YOUR LOCAL HOST URL i.e YOUR_LOCALHOST_ADDRESS"</p> <p>(2) In production.rb config.action_controller.asset_host = "<a href="http://assets.example.com" rel="nofollow">http://assets.example.com</a>" /<em>YOUR ADDRESS</em>/</p> <p><strong>H)</strong> And last relate your stylesheet with IMGKIT as below</p> <pre><code>html_content = "YOUR HTML CONTENT" kit = IMGKit.new(html_content, height: 900, transparent:true, quality:10) /*YOUR SETTING*/ kit.stylesheets &lt;&lt; "#{Rails.root}/public/assets/application.css" file = kit.to_file(Rails.root + "public/pngs/" + "screenshot.png") /*YOUR IMAGE NAME*/ send_file("#{Rails.root}/public/pngs/screenshot.png", :filename =&gt; "screenshot.png", :type =&gt; "image/png",:disposition =&gt; 'attachment',:streaming=&gt; 'true') /*YOUR ADDRESS WHERE U WANT TO STORE PNG FILE*/ </code></pre> <p><strong>I)</strong> Restart server and enjoy!!!!!</p> <p>[<strong>NOTE:</strong> After every changes please run assets pipline command to get latest application.css which is made from .sccs.erb extension file.]</p>
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