another approach

app copy.py

@@ -0,0 +1,65 @@
+import os
+import subprocess
+import gradio as gr
+from pptx import Presentation
+from pptx.util import Inches
+from pdf2image import convert_from_path
+
+# Run the setup script to install unoconv and libreoffice
+subprocess.run(['bash', 'setup.sh'], check=True)
+
+# Function to convert PowerPoint to PDF using unoconv
+def pptx_to_pdf(input_pptx, output_pdf):
+    subprocess.run(['unoconv', '-f', 'pdf', '-o', output_pdf, input_pptx], check=True)
+
+# Function to convert PDF to PowerPoint
+def pdf_to_pptx(input_pdf, output_pptx):
+    # Specify a directory to save images
+    output_dir = "pdf_images"
+    os.makedirs(output_dir, exist_ok=True)
+    
+    # Convert PDF to images and save in the specified directory
+    images = convert_from_path(input_pdf, output_folder=output_dir)
+    
+    # Create a new PowerPoint presentation
+    presentation = Presentation()
+    
+    for i, img in enumerate(images):
+        img_path = os.path.join(output_dir, f"page_{i+1}.png")
+        img.save(img_path, 'PNG')
+        
+        slide_layout = presentation.slide_layouts[5]  # Use a blank layout
+        slide = presentation.slides.add_slide(slide_layout)
+        left = top = Inches(0)
+        pic = slide.shapes.add_picture(img_path, left, top, width=Inches(10), height=Inches(7.5))
+        
+    presentation.save(output_pptx)
+
+def convert_pptx_to_pdf(pptx_file):
+    output_pdf = "output.pdf"
+    pptx_to_pdf(pptx_file.name, output_pdf)
+    return output_pdf
+
+def convert_pdf_to_pptx(pdf_file):
+    output_pptx = "output_converted.pptx"
+    pdf_to_pptx(pdf_file.name, output_pptx)
+    return output_pptx
+
+pptx_to_pdf_interface = gr.Interface(
+    fn=convert_pptx_to_pdf,
+    inputs=gr.File(label="Upload PPTX File", file_count="single"),
+    outputs=gr.File(label="Download PDF File"),
+    title="Convert PPTX to PDF"
+)
+
+pdf_to_pptx_interface = gr.Interface(
+    fn=convert_pdf_to_pptx,
+    inputs=gr.File(label="Upload PDF File", file_count="single"),
+    outputs=gr.File(label="Download PPTX File"),
+    title="Convert PDF to PPTX"
+)
+
+app = gr.TabbedInterface([pptx_to_pdf_interface, pdf_to_pptx_interface], ["PPTX to PDF", "PDF to PPTX"])
+
+if __name__ == "__main__":
+    app.launch()

app.py

@@ -1,65 +1,40 @@
-import os
-import subprocess
 import gradio as gr
 from pptx import Presentation
-from pptx.util import Inches
-from pdf2image import convert_from_path
-
-# Run the setup script to install unoconv and libreoffice
-subprocess.run(['bash', 'setup.sh'], check=True)
-
-# Function to convert PowerPoint to PDF using unoconv
-def pptx_to_pdf(input_pptx, output_pdf):
-    subprocess.run(['unoconv', '-f', 'pdf', '-o', output_pdf, input_pptx], check=True)
+from fpdf import FPDF
+import tempfile
+import os
 
-# Function to convert PDF to PowerPoint
-def pdf_to_pptx(input_pdf, output_pptx):
-    # Specify a directory to save images
-    output_dir = "pdf_images"
-    os.makedirs(output_dir, exist_ok=True)
-    
-    # Convert PDF to images and save in the specified directory
-    images = convert_from_path(input_pdf, output_folder=output_dir)
-    
-    # Create a new PowerPoint presentation
-    presentation = Presentation()
-    
-    for i, img in enumerate(images):
-        img_path = os.path.join(output_dir, f"page_{i+1}.png")
-        img.save(img_path, 'PNG')
+def pptx_to_pdf(pptx_file):
+    # Create a temporary directory to store intermediate images
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        pdf = FPDF()
         
-        slide_layout = presentation.slide_layouts[5]  # Use a blank layout
-        slide = presentation.slides.add_slide(slide_layout)
-        left = top = Inches(0)
-        pic = slide.shapes.add_picture(img_path, left, top, width=Inches(10), height=Inches(7.5))
+        # Load the PowerPoint file
+        presentation = Presentation(pptx_file.name)
         
-    presentation.save(output_pptx)
-
-def convert_pptx_to_pdf(pptx_file):
-    output_pdf = "output.pdf"
-    pptx_to_pdf(pptx_file.name, output_pdf)
-    return output_pdf
-
-def convert_pdf_to_pptx(pdf_file):
-    output_pptx = "output_converted.pptx"
-    pdf_to_pptx(pdf_file.name, output_pptx)
-    return output_pptx
-
-pptx_to_pdf_interface = gr.Interface(
-    fn=convert_pptx_to_pdf,
-    inputs=gr.File(label="Upload PPTX File", file_count="single"),
-    outputs=gr.File(label="Download PDF File"),
-    title="Convert PPTX to PDF"
+        for i, slide in enumerate(presentation.slides):
+            # Save each slide as an image
+            img_path = os.path.join(tmpdirname, f"slide_{i}.png")
+            slide.shapes[0].image.save(img_path)
+
+            # Add the image to the PDF
+            pdf.add_page()
+            pdf.image(img_path, 0, 0, 210, 297)  # A4 size (210mm x 297mm)
+
+        # Save the PDF to a file
+        pdf_output_path = os.path.join(tmpdirname, "output.pdf")
+        pdf.output(pdf_output_path)
+
+        return pdf_output_path
+
+# Create a Gradio interface
+iface = gr.Interface(
+    fn=pptx_to_pdf,
+    inputs=gr.inputs.File(file_types=[".pptx"]),
+    outputs=gr.outputs.File(file_types=[".pdf"]),
+    title="PPTX to PDF Converter",
+    description="Upload a PowerPoint file to convert it to a PDF without watermarks."
 )
 
-pdf_to_pptx_interface = gr.Interface(
-    fn=convert_pdf_to_pptx,
-    inputs=gr.File(label="Upload PDF File", file_count="single"),
-    outputs=gr.File(label="Download PPTX File"),
-    title="Convert PDF to PPTX"
-)
-
-app = gr.TabbedInterface([pptx_to_pdf_interface, pdf_to_pptx_interface], ["PPTX to PDF", "PDF to PPTX"])
-
-if __name__ == "__main__":
-    app.launch()
+# Launch the app
+iface.launch()

requirements.txt

@@ -1,4 +1,4 @@
-gradio
-python-pptx
-pdf2image
-pyppeteer
+gradio==3.1.4
+python-pptx==0.6.21
+fpdf==1.7.2
+Pillow==9.1.1