How to auto-share WordPress posts to Facebook page without displaying link?

I have a business partner who have her website in WordPress. I want to get displayed all her posts automatically to my Facebook page without displaying the website or post link. So, instead of displaying the usual title name, excerpt, featured image, post link & short description of the post which commonly every plugin provide, I want to display the post title name with its full text contents & images without displaying neither the website link nor the post URL. It should look as if the Facebook page Admin has directly posted that article.
I can have the access to the WordPress website for the need of authorization.

Please let me anyone know whether there is any possible plugin for this.