Text jumping with javascript

Text jumping with javascript

Hello Javascript-expert,

I want to do a program based on javascript online (Browser) for datasets of texts (PDF, Word, HTML). It should open those datas and enable text jumping. An example would be 3 words per second. The surrounding (imagines, background, text format) should be untouched.

Here is a example for it.

Can you please give me an idea, how I can accomplish that?

Thanks a lot,
Chris