Update app.py

app.py

@@ -1,5 +1,3 @@
-
-
 import io
 import re
 import streamlit as st
@@ -32,9 +30,9 @@ def create_pdf_tab(default_markdown):
         auto_size = st.checkbox("Auto-size text", value=True)
         base_font_size = st.slider("Base Font Size (points)", min_value=6, max_value=16, value=10, step=1)
         if auto_size:
-            st.info("Font size will adjust between 6-16 points based on content length, starting from your base size.")
+            st.info("Font size will adjust between 6-16 points to fit content on one page, starting from your base size.")
         plain_text_mode = st.checkbox("Render as Plain Text (Preserve Bold Only)", value=False)
-        num_columns = st.selectbox("Number of Columns", options=[1, 2, 3, 4, 5, 6], index=0)  # Default to 1 column
+        num_columns = st.selectbox("Number of Columns", options=[1, 2, 3, 4, 5, 6], index=1)  # Default to 2 columns
 
     # Register font
     pdfmetrics.registerFont(TTFont(selected_font_name, selected_font_path))
@@ -62,7 +60,7 @@ def create_pdf_tab(default_markdown):
         return emoji_pattern.sub(replace_emoji, text)
 
     # Markdown to PDF content
-    def markdown_to_pdf_content(markdown_text, plain_text_mode, font_size, num_columns):
+    def markdown_to_pdf_content(markdown_text, plain_text_mode):
         lines = markdown_text.strip().split('\n')
         pdf_content = []
 
@@ -86,31 +84,30 @@ def create_pdf_tab(default_markdown):
                     pdf_content.append(line.strip())
 
         total_lines = len(pdf_content)
-        columns = [[] for _ in range(num_columns)]
-        lines_per_column = total_lines / num_columns if num_columns > 0 else total_lines
-        current_line_count = 0
-        current_column = 0
-
-        for item in pdf_content:
-            if current_line_count >= lines_per_column and current_column < num_columns - 1:
-                current_column += 1
-                current_line_count = 0
-            columns[current_column].append(item)
-            current_line_count += 1
-
-        return columns, total_lines
+        return pdf_content, total_lines
 
     # Create PDF
     def create_pdf(markdown_text, base_font_size, auto_size, plain_text_mode, num_columns):
         buffer = io.BytesIO()
-        doc = SimpleDocTemplate(buffer, pagesize=A4, leftMargin=36, rightMargin=36, topMargin=36, bottomMargin=36)
+        # Double A4 page: A4 width * 2 (landscape)
+        page_width = A4[0] * 2
+        page_height = A4[1]
+        doc = SimpleDocTemplate(buffer, pagesize=(page_width, page_height), leftMargin=36, rightMargin=36, topMargin=36, bottomMargin=36)
         styles = getSampleStyleSheet()
         story = []
         spacer_height = 10
-        columns, total_lines = markdown_to_pdf_content(markdown_text, plain_text_mode, base_font_size, num_columns)
+        pdf_content, total_lines = markdown_to_pdf_content(markdown_text, plain_text_mode)
 
+        # Auto-size logic: reduce font size as content grows to fit one page
         if auto_size and total_lines > 0:
-            base_font_size = max(6, min(16, base_font_size * 300 / total_lines))
+            # Target fitting content within page height (accounting for margins and spacing)
+            target_lines_per_column = (page_height - 72 - spacer_height) / (base_font_size * 1.15)  # Approx lines per column
+            total_target_lines = target_lines_per_column * num_columns
+            if total_lines > total_target_lines:
+                scale_factor = total_target_lines / total_lines
+                base_font_size = max(6, min(16, base_font_size * scale_factor))
+            else:
+                base_font_size = min(16, base_font_size * (total_lines / total_target_lines))
 
         item_font_size = base_font_size
         section_font_size = base_font_size * 1.1
@@ -125,6 +122,18 @@ def create_pdf_tab(default_markdown):
         )
 
         story.append(Spacer(1, spacer_height))
+        columns = [[] for _ in range(num_columns)]
+        lines_per_column = total_lines / num_columns if num_columns > 0 else total_lines
+        current_line_count = 0
+        current_column = 0
+
+        for item in pdf_content:
+            if current_line_count >= lines_per_column and current_column < num_columns - 1:
+                current_column += 1
+                current_line_count = 0
+            columns[current_column].append(item)
+            current_line_count += 1
+
         column_cells = [[] for _ in range(num_columns)]
         for col_idx, column in enumerate(columns):
             for item in column:
@@ -138,7 +147,7 @@ def create_pdf_tab(default_markdown):
         for cells in column_cells:
             cells.extend([Paragraph("", item_style)] * (max_cells - len(cells)))
 
-        col_width = (A4[0] - 72) / num_columns if num_columns > 0 else A4[0] - 72
+        col_width = (page_width - 72) / num_columns if num_columns > 0 else page_width - 72
         table_data = list(zip(*column_cells)) if column_cells else [[]]
         table = Table(table_data, colWidths=[col_width] * num_columns, hAlign='CENTER')
         table.setStyle(TableStyle([
@@ -194,9 +203,6 @@ def create_pdf_tab(default_markdown):
     st.download_button(label="Save Markdown", data=st.session_state.markdown_content, file_name="deities_guide.md", mime="text/markdown")
 
 
-
-
-
 default_markdown = """# 🌟 Deities Guide: Mythology and Moral Lessons 🌟
 
 ## 1. 📜 Introduction