From 32c33c9db3f2b9a12700fe38876f1e0fd0499e27 Mon Sep 17 00:00:00 2001
From: Steffen Becker <stffn.becker@gmail.com>
Date: Thu, 25 Jun 2026 19:40:53 +0200
Subject: [PATCH] fix: missing empty lines in prints

---
 src/lib/export/pdf.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lib/export/pdf.ts b/src/lib/export/pdf.ts
index fa7594d..1f0c357 100644
--- a/src/lib/export/pdf.ts
+++ b/src/lib/export/pdf.ts
@@ -302,6 +302,11 @@ function buildBodyHtml(json: Json): string {
     }
     table.insertBefore(cg, table.firstChild);
   });
+  // generateHTML omits ProseMirror's trailing <br>, so empty textblocks collapse to zero
+  // height and blank lines vanish in print. Re-add a break so each keeps a line.
+  host.querySelectorAll('p, h1, h2, h3').forEach((el) => {
+    if (!el.firstChild) el.appendChild(document.createElement('br'));
+  });
   return host.innerHTML;
 }