Update app.py

app.py

@@ -128,50 +128,70 @@ def create_main_pdf(markdown_text):
     buffer = io.BytesIO()
     doc = SimpleDocTemplate(
         buffer, 
-        pagesize=(A4[1], A4[0]),  # Landscape
-        leftMargin=50,
-        rightMargin=50,
-        topMargin=50,
-        bottomMargin=50
+        pagesize=(A4[1], A4[0]),  # Landscape A4: 841.89 x 595.27 points
+        leftMargin=36,  # Reduced margins to maximize content area
+        rightMargin=36,
+        topMargin=36,
+        bottomMargin=36
     )
     
     styles = getSampleStyleSheet()
     story = []
     
-    # Create custom styles
+    # Available height for content (excluding title and spacer)
+    page_height = A4[0] - 72  # Total height minus top and bottom margins
+    title_height = 20  # Approximate height of title
+    spacer_height = 10  # Reduced spacer
+    available_content_height = page_height - title_height - spacer_height
+    
+    # Count total items for dynamic sizing
+    left_column, right_column = markdown_to_pdf_content(markdown_text)
+    total_items = sum(1 + (len(sub_items) if isinstance(item, list) else 0) 
+                     for col in (left_column, right_column) 
+                     for item in col)
+    
+    # Dynamic font sizes based on content length
+    base_font_size = max(6, min(11, 200 / total_items))  # Between 6 and 11
+    item_font_size = base_font_size
+    subitem_font_size = base_font_size * 0.9
+    section_font_size = base_font_size * 1.2
+    
+    # Create custom styles with dynamic sizes
     title_style = styles['Heading1']
     title_style.textColor = colors.darkblue
-    title_style.alignment = 1  # Center alignment
+    title_style.alignment = 1
+    title_style.fontSize = min(16, base_font_size * 1.5)
     
     section_style = ParagraphStyle(
         'SectionStyle',
         parent=styles['Heading2'],
         textColor=colors.darkblue,
-        spaceAfter=6
+        fontSize=section_font_size,
+        leading=section_font_size * 1.2,
+        spaceAfter=2
     )
     
     item_style = ParagraphStyle(
         'ItemStyle',
         parent=styles['Normal'],
-        fontSize=11,
-        leading=14,
-        fontName='Helvetica-Bold'
+        fontSize=item_font_size,
+        leading=item_font_size * 1.2,
+        fontName='Helvetica-Bold',
+        spaceAfter=1
     )
     
     subitem_style = ParagraphStyle(
         'SubItemStyle',
         parent=styles['Normal'],
-        fontSize=10,
-        leading=12,
-        leftIndent=20
+        fontSize=subitem_font_size,
+        leading=subitem_font_size * 1.2,
+        leftIndent=10,
+        spaceAfter=1
     )
     
     # Add title
     story.append(Paragraph("Cutting-Edge ML Outline (ReportLab)", title_style))
-    story.append(Spacer(1, 20))
-    
-    # Process markdown content
-    left_column, right_column = markdown_to_pdf_content(markdown_text)
+    story.append(Spacer(1, spacer_height))
     
     # Prepare data for table
     left_cells = []
@@ -208,20 +228,27 @@ def create_main_pdf(markdown_text):
     # Create table data
     table_data = list(zip(left_cells, right_cells))
     
-    # Calculate column widths
-    col_width = (A4[1] - 120) / 2.0
+    # Calculate column widths (maximize usable width)
+    col_width = (A4[1] - 72) / 2.0  # Total width minus margins divided by 2
     
     # Create and style table
-    table = Table(table_data, colWidths=[col_width, col_width])
+    table = Table(table_data, colWidths=[col_width, col_width], hAlign='CENTER')
     table.setStyle(TableStyle([
         ('VALIGN', (0, 0), (-1, -1), 'TOP'),
-        ('ALIGN', (0, 0), (0, -1), 'LEFT'),
-        ('ALIGN', (1, 0), (1, -1), 'LEFT'),
+        ('ALIGN', (0, 0), (-1, -1), 'LEFT'),
         ('BACKGROUND', (0, 0), (-1, -1), colors.white),
-        ('GRID', (0, 0), (-1, -1), 0.5, colors.white),
-        ('LINEAFTER', (0, 0), (0, -1), 1, colors.grey),
+        ('GRID', (0, 0), (-1, -1), 0, colors.white),  # Remove grid lines
+        ('LINEAFTER', (0, 0), (0, -1), 0.5, colors.grey),  # Center divider
+        ('LEFTPADDING', (0, 0), (-1, -1), 2),
+        ('RIGHTPADDING', (0, 0), (-1, -1), 2),
+        ('TOPPADDING', (0, 0), (-1, -1), 1),
+        ('BOTTOMPADDING', (0, 0), (-1, -1), 1),
     ]))
     
+    # Ensure table fits within available height
+    table.spaceBefore = 0
+    table.spaceAfter = 0
+    
     story.append(table)
     doc.build(story)
     buffer.seek(0)