Update app.py

app.py

@@ -98,22 +98,41 @@ def _build_text(r: dict, mc_passes: int) -> str:
 
 # ── PDF BUILDER ───────────────────────────────────────────────────────────
 def _build_pdf(text: str):
+
     try:
         from fpdf import FPDF
 
+        # Remove unsupported unicode characters
+        safe_text = (
+            text.replace("—", "-")
+                .replace("•", "-")
+                .replace("→", "->")
+        )
+
         pdf = FPDF()
+
         pdf.add_page()
-        pdf.set_font("Courier", size=11)
 
-        for line in text.splitlines():
-            pdf.cell(0, 7, txt=line, ln=True)
+        pdf.set_auto_page_break(auto=True, margin=15)
+
+        pdf.set_font("Courier", size=10)
+
+        for line in safe_text.splitlines():
+            pdf.multi_cell(0, 6, txt=line)
+
+        out = tempfile.NamedTemporaryFile(
+            delete=False,
+            suffix=".pdf"
+        )
 
-        out = tempfile.NamedTemporaryFile(delete=False, suffix=".pdf")
         pdf.output(out.name)
+
         return out.name
 
     except Exception as e:
-        print(f"PDF generation failed: {e}")
+
+        print("PDF generation failed:", repr(e))
+
         return None