docs: document dropping PDF support

Sponsored-by: author

1 files changed, 15 insertions, 0 deletions

diff --git a/DECISIONS.md b/DECISIONS.md
index 98422fb..0f12fc9 100644
--- a/DECISIONS.md
+++ b/DECISIONS.md
@@ -13,6 +13,21 @@ Each decision should have its own heading. Newest decision should come
 first. Updated or overturned decisions should have their section
 updated to note their status, without moving them.
 
+## Output format for `docgen`
+
+Date: 2023-03-21
+
+What: `subplot docgen` will only support HTML as the output format. We
+no longer support PDF.
+
+Why: We want to drop support of Pandoc for parsing markdown input
+files, and this is simpler to achieve if we don't need to support PDF
+output, as it relieves us from the need to produce an abstract syntax
+tree in the Pandoc representation. Producing PDF without a Pandoc AST
+is trickier.
+
+Who: Daniel, Lars
+
 ## Minimum Supported Rust Version
 
 Date: 2023-03-21