Backlinks Dofolow. It will help you to increase your PR.

Page rank is no more important as Google has stopped updating their page rank algorithm now. Do SEO to increase PR of your website

on page seo
 

i think on page seo is the best way to increase pr

Hm, first time I come across the information on edu or gov backlinks. Need to look into it. Thank you for a fresh idea

Proper on page optimization,create the link building on high profile sites,social media promotion these are the best way to improve the page rank of the site..

Part 1 Providing quality content

Focus on your content. The most important factor for your page rank is the content on your site. ...
Update your website regularly with new content. Websites that stagnate and do not stay current will drop in the ranks. ...
Ensure that your content matches your site description and keywords.

By using SEO you can increase the page rank.

I think it is not possible and also not effective for your website,

Build a backlink for a particular page with different domains means new referring domains. easily you can increase your Page authority.

Publish Relevant Content. Quality content is the number one driver of your search engine rankings and there is no substitute for great content. ...
Update Your Content Regularly. ...
Metadata. ...
Have a link-worthy site. ...
Use alt tags.

Why you focus on pr. Google doesn't need your pr. so focus only seo create some quality backlink that provides some natural backlink or google improve your website status. google don't close pr but it hides publically