backend/app/services/pdf_generator.py

@@ -28,12 +28,20 @@ class PDFGenerator:
         
         # Try to register custom Cactus Classical Serif font first
         self.custom_font = None
+        
+        # Ensure we have the absolute path to the current file
+        current_file = os.path.abspath(__file__)
+        # backend/app/services/pdf_generator.py -> backend/app/services -> backend/app -> backend -> root
+        root_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(current_file))))
+        
         custom_font_path = os.path.join(
-            os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(__file__)))),
+            root_dir,
             'Cactus_Classical_Serif',
             'CactusClassicalSerif-Regular.ttf'
         )
         
+        print(f"Attempting to load font from: {custom_font_path}")
+        
         if os.path.exists(custom_font_path):
             try:
                 pdfmetrics.registerFont(TTFont('CactusClassicalSerif', custom_font_path))
@@ -41,12 +49,25 @@ class PDFGenerator:
                 print(f"Successfully registered Cactus Classical Serif font")
             except Exception as e:
                 print(f"Error registering custom font: {e}")
+        else:
+            print(f"Custom font file not found at {custom_font_path}")
+            # Try looking in current working directory as fallback
+            cwd_path = os.path.join(os.getcwd(), 'Cactus_Classical_Serif', 'CactusClassicalSerif-Regular.ttf')
+            if os.path.exists(cwd_path):
+                 try:
+                    pdfmetrics.registerFont(TTFont('CactusClassicalSerif', cwd_path))
+                    self.custom_font = 'CactusClassicalSerif'
+                    print(f"Successfully registered Cactus Classical Serif font from CWD")
+                 except Exception as e:
+                    print(f"Error registering custom font from CWD: {e}")
 
         # Register Chinese font as fallback for CJK characters
+        if not self.custom_font:
             try:
                 # Register Chinese font (Traditional Chinese support)
                 pdfmetrics.registerFont(UnicodeCIDFont('STSong-Light'))
                 self.chinese_font = 'STSong-Light'
+                print("Registered STSong-Light as fallback (Warning: May not be visible in all viewers)")
             except Exception as e:
                 # If CID font registration fails, try alternative method
                 try:
@@ -61,6 +82,8 @@ class PDFGenerator:
                         # Fallback to basic font
                         self.chinese_font = 'Helvetica'
                         print("Warning: Could not register Chinese font")
+        else:
+            self.chinese_font = self.custom_font
         
         # Set primary font: use custom font if available, otherwise Chinese font
         self.primary_font = self.custom_font if self.custom_font else self.chinese_font

pyproject.toml

@@ -18,12 +18,14 @@ dependencies = [
     "langchain-google-genai>=2.1.5",
     "langchain-openai>=0.3.23",
     "langgraph>=0.4.8",
+    "markdown>=3.9",
     "pandas>=2.3.0",
     "parsel>=1.10.0",
     "praw>=7.8.1",
     "pytz>=2025.2",
     "questionary>=2.1.0",
     "redis>=6.2.0",
+    "reportlab>=4.4.5",
     "requests>=2.32.4",
     "rich>=14.0.0",
     "setuptools>=80.9.0",