Update app.py

app.py

@@ -227,28 +227,31 @@ def generate_pdf_report(result, charts=None, table_data=None, metadata=None, key
     with tempfile.NamedTemporaryFile(delete=False, suffix=".pdf") as temp_pdf:
         pdf = FPDF()
         pdf.add_page()
-        pdf.set_font("Arial", size=12)
+
+        # Add a Unicode-compatible font (DejaVuSans)
+        pdf.add_font('DejaVu', '', '/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf', uni=True)
+        pdf.set_font("DejaVu", size=12)
         pdf.set_auto_page_break(auto=True, margin=15)
 
-        pdf.set_font("Arial", size=16, style="B")
+        pdf.set_font("DejaVu", size=16, style="B")
         pdf.cell(200, 10, txt="Patent Strategy and Innovation Report", ln=True, align="C")
         pdf.ln(10)
 
         if metadata:
-            pdf.set_font("Arial", size=10)
+            pdf.set_font("DejaVu", size=10)
             for key, value in metadata.items():
                 pdf.cell(200, 10, txt=f"{key}: {value}", ln=True)
 
-        pdf.set_font("Arial", size=12)
+        pdf.set_font("DejaVu", size=12)
         pdf.multi_cell(0, 10, txt=result)
 
         # Insert Key Insights Section
         if key_insights:
             pdf.add_page()
-            pdf.set_font("Arial", size=14, style="B")
+            pdf.set_font("DejaVu", size=14, style="B")
             pdf.cell(200, 10, txt="Key Strategic Insights", ln=True)
             pdf.ln(5)
-            pdf.set_font("Arial", size=12)
+            pdf.set_font("DejaVu", size=12)
             for insight in key_insights:
                 pdf.multi_cell(0, 10, txt=f"- {insight}")
 
@@ -264,7 +267,7 @@ def generate_pdf_report(result, charts=None, table_data=None, metadata=None, key
         # Insert Tables
         if table_data:
             pdf.add_page()
-            pdf.set_font("Arial", size=10)
+            pdf.set_font("DejaVu", size=10)
             pdf.cell(200, 10, txt="Consolidated Data Table:", ln=True, align="L")
             for row in table_data:
                 pdf.cell(200, 10, txt=str(row), ln=True)
@@ -272,7 +275,6 @@ def generate_pdf_report(result, charts=None, table_data=None, metadata=None, key
         pdf.output(temp_pdf.name)
         return temp_pdf.name
 
-
 # Data Validation
 def validate_analyst_output(analyst_output):
     if not analyst_output:
@@ -345,8 +347,6 @@ def create_visualizations(analyst_output):
 
     return chart_paths
 
-
-
 def display_table(analyst_output):
     table_data = []
     validated_data = validate_analyst_output(analyst_output)