Function render 

pub fn render(
    page: &Page<'_>,
    interpreter_settings: &InterpreterSettings,
    render_settings: &RenderSettings,
) -> Pixmap

Render the page with the given settings to a pixmap.

Uses a fresh per-page glyph outline cache; to share outlines across the pages of a document, see render_with_glyph_cache. Output is identical either way.