add note about uploading PDFs

1 files changed, 4 insertions, 0 deletions

diff --git a/2023/speakers.md b/2023/speakers.md
index fb8a7f0e..9cd19ab0 100644
--- a/2023/speakers.md
+++ b/2023/speakers.md
@@ -57,6 +57,10 @@ whenever you like.
     the questions out for you, please read the question out before you
     answer it. This makes it easier to follow the conversation and to
     copy the answers to the talk page afterwards.
+  - Uploading PDFs doesn't work in our BigBlueButton instance, but you
+    can share your screen. Sharing screens with multi-monitor setups
+    can be tricky. If this acts weirdly for you, try sharing just the
+    window you want to focus on, or switch to using one monitor.
   - The Q&A will be recorded so that people can keep learning from it
     even after the conference. If you accidentally share something or
     would like part of the recording removed, please add something