Social Insider and Cloud Campaign recently teamed up to analyse which post formats were generating the best responses on LinkedIn. The study found that native documents, like posts containing PDFs, generated 3 x more clicks than any other content type. 

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This is interesting data for anyone looking to expand their reach and get more engagement with what they are positing. It is especially useful for businesses who publish long-form content, as it will allow them to share information or an agenda -  all whilst boosting their reach.