How can I combine SEO with Usability?

[Harikrishna Patel]

I have 1 website which is full of Videos and PDFs, which makes it more users interactive, but it is somewhat not good for SEO Bots, how can i make it Usable along with the SEO optimization?

[kaufenpreis]

You can add unique text to all your videos

[Emmaballet20]

Well having a website with full of Videos and PDFs isn't bad but yes something website face problem while Google getting indexed PDF on SERP. So do something like which helps a website to Boost SEO.