diff --git a/zsh/completion.zsh b/zsh/completion.zsh
index de7db34..b418e36 100644
--- a/zsh/completion.zsh
+++ b/zsh/completion.zsh
@@ -112,6 +112,9 @@ zstyle ':completion:*:*:vim:*:globbed-files' ignored-patterns \
     '*.pyc' \
     '*.class'
 
+# only complete *.pdf with katarakt
+zstyle ':completion:*:*:katarakt:*:*' file-patterns '*.pdf'
+
 # ===== completion fallback
 zle -C complete-files complete-word _generic
 zstyle ':completion:complete-files:*' completer _files