Re: DocView paging set to fit to page or to width in separate window frames

[Van L <van@scratch.space>]

>> I have two frames each with their own window viewing a DocView buffer
>> on the one PDF page.
> 
> Do you mean an X-window, or do you mean a buffer?

The frames are on the Mac’s Finder window manager. 
I mean the PDF page as PNG image in a window of an Emacs frame.

> What kind of buffer is opening when you view the documentation as a PDF
> file. Are you using the generic PDF-to-image conversion tool that is
> built into emacs, or are you using an extension?

The toolchain leaves [(DocView)] on the modeline and 
should be using the builtin Emacs infrastructure.

I’m after a variable that configures the width or page viewport size for next paging. Normally, I use buffer and indirect buffer for text to display at different text scale factors. I’m wanting that for PDF reading.