diff --git a/app/main.py b/app/main.py
index 4ea51d9..58bdff8 100644
--- a/app/main.py
+++ b/app/main.py
@@ -3459,7 +3459,11 @@ async def _render_scorecard_pdf(
         width=width, height=height,
     )
 
-    page_size_css = f"@page {{ size: {width}px {height}px; margin: 0; }}"
+    # `size: NNNpt` → PDF-Page hat exakt N×M Punkte. PyMuPDF rendert
+    # bei zoom=1 dann 1 PDF-Punkt = 1 PNG-Pixel. CSS-Pixel werden
+    # aber auch in pt umgerechnet (96dpi → 72dpi → ×0.75) — daher
+    # konvertiere pt→css-px so, dass die Inhalts-Layouts passen.
+    page_size_css = f"@page {{ size: {width}pt {height}pt; margin: 0; }}"
     pdf = HTML(string=html_content).write_pdf(stylesheets=[CSS(string=page_size_css)])
     safe = drucksache.replace("/", "-")
     return pdf, width, height, f"scorecard-{safe}-{format}"