Colin Leitner

IIRC its available since PDF 1.2. `/Rect` is still required and acts as a fallback/bounding box. As for the reader support I don't know. Readers have to support appearance streams...

> Readers have to support appearance streams for any non-rect annotations. That's of course not true. PDF defines a set of presentational annotations as well, but limited to basic shapes....

I couldn't get appearance streams to work, but `QuadPoints` seem to be the way to go for the normal usecase of multiple rects for a single link: ```python document =...

:+1: This feature is needed to properly support back pressure (slow receiver, fast producer) and reliable communication. The current implementation hides theses problems with excessive buffering but that's its own...