Companion — PDF Presenter
PDF Presenter on a Stream Deck

What it does
A Bitfocus Companion module for PDF Presenter Lite, so you can drive a running copy from a Stream Deck or any other Companion surface over its OSC control protocol.
It talks straight to the app's own OSC listener on UDP 35551 and gets feedback back on 35550, so there's nothing to install on the app side beyond turning OSC on in its titlebar.
- Next and previous slide, go to a slide number, first and last, named sections
- Start and stop the Output window, toggle black or white screen, toggle the laser pointer overlay
- Set the current slide as the desktop wallpaper, and pause or resume timed auto-advance
- Set the watched folder, list its files, and open one by name
- Feedbacks for slideshow state, the current transition effect and direction, and whether OSC file access is enabled
- Set the slide transition — effect, direction and duration, together or one at a time — from fixed lists mirrored from the app, since the app reports which transition is selected but never which ones it supports
Where it stands
Released. It isn't in the official Companion module store, so install it as a developer module.