[Feature Request] Split pages in two

[LeifAndersen]

I have fairly low vision and often find reading one printed page on the remarkable is quite difficult. As such, I cut each page in half before sending it to the remarkable. I would also like to be able to do this using your printer script.

It seems to me that there are two possible ways to do this:

1. Somehow add in the .pdd file a new page size that is half the current 'remarkable' size, and let the remarkable scale the page up on its own.

2. Create a new printer device that:

   1. Prints to a pdf.
   2. Cuts the page in half
   3. Sends this new pdf to be printed by your existing printer.

Option #1 seems better (and easier) to me, but I don't really know enough about CUPS (or whatever the printing subsystem for linux is) to do it myself (at least not yet).

[Evidlo]

I created a pdfsplit branch with a CUPS filter that splits the page. It requires mutool to be installed.

make install_config_split

I think something like this make more sense as a xochitl mod though.