updated to cairosvg

app.py

@@ -9,11 +9,8 @@ from extensions import db, bcrypt, login_manager
 from models import User, Player, Content, Group  # Add Group to the imports
 from flask_login import login_user, logout_user, login_required, current_user
 from pptx import Presentation
-from pptx.util import Inches
-from PIL import Image
-import io
-import threading
-from PIL import Image, ImageDraw
+import cairosvg
+import os
 
 app = Flask(__name__, instance_relative_config=True)
 
@@ -184,7 +181,7 @@ def convert_video_and_update_playlist(file_path, original_filename, target_type,
 
 def convert_pptx_to_images(input_file, output_folder):
     """
-    Converts a PowerPoint file (.pptx) to images using python-pptx.
+    Converts a PowerPoint file (.pptx) to images while preserving the format and look of the slides.
     Each slide is saved as a separate image in the output folder.
     """
     try:
@@ -196,20 +193,13 @@ def convert_pptx_to_images(input_file, output_folder):
         base_name = os.path.splitext(os.path.basename(input_file))[0]
 
         for i, slide in enumerate(presentation.slides):
-            # Create a blank image for the slide
-            img = Image.new('RGB', (1920, 1080), color='white')  # Adjust resolution as needed
-            draw = ImageDraw.Draw(img)
+            # Generate an SVG representation of the slide
+            svg_content = generate_svg_from_slide(slide)
 
-            # Extract slide content (text, shapes, etc.)
-            for shape in slide.shapes:
-                if shape.has_text_frame:
-                    text = shape.text_frame.text
-                    draw.text((50, 50 + i * 20), text, fill='black')  # Adjust position and styling
-
-            # Save the image
+            # Convert the SVG to a high-quality image (JPEG)
             image_filename = f"{base_name}_slide_{i + 1}.jpg"
             image_path = os.path.join(output_folder, image_filename)
-            img.save(image_path, 'JPEG')
+            cairosvg.svg2png(bytestring=svg_content, write_to=image_path, dpi=300)
             print(f"Slide {i + 1} saved as image: {image_path}")
 
         # Delete the original PPTX file after conversion
@@ -222,6 +212,25 @@ def convert_pptx_to_images(input_file, output_folder):
         print(f"Error processing PPTX file: {e}")
         return False
 
+def generate_svg_from_slide(slide):
+    """
+    Generates an SVG representation of a PowerPoint slide.
+    This function extracts shapes, text, and other elements from the slide.
+    """
+    svg_content = '<svg xmlns="http://www.w3.org/2000/svg" width="1920" height="1080">'
+    for shape in slide.shapes:
+        if shape.has_text_frame:
+            text = shape.text_frame.text
+            # Add text to the SVG (adjust position and styling as needed)
+            svg_content += f'<text x="50" y="50" font-size="20" fill="black">{text}</text>'
+        elif shape.shape_type == 13:  # Picture shape
+            if shape.image:
+                image_bytes = shape.image.blob
+                image_base64 = base64.b64encode(image_bytes).decode('utf-8')
+                svg_content += f'<image href="data:image/png;base64,{image_base64}" x="0" y="0" width="1920" height="1080"/>'
+    svg_content += '</svg>'
+    return svg_content
+
 # Convert EMU to pixels
 def emu_to_pixels(emu):
     return int(emu / 914400 * 96)

requirements.txt

@@ -17,4 +17,5 @@ typing_extensions==4.12.2
 Werkzeug==3.1.3
 gunicorn==20.1.0
 pdf2image==1.17.0
-python-pptx==0.6.21
+python-pptx==0.6.21
+cairosvg==2.7.0