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Create app.py
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app.py
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# app.py
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import gradio as gr
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import markdown
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import pdfkit
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import tempfile
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import os
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from pathlib import Path
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def convert_markdown_to_pdf(markdown_file):
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"""
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Convert uploaded markdown file to PDF and return both preview HTML and PDF path
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"""
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if markdown_file is None:
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return None, None
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# Read the markdown content
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markdown_content = markdown_file.decode('utf-8')
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# Convert markdown to HTML
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html_content = markdown.markdown(markdown_content)
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# Wrap HTML content with proper HTML structure
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full_html = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<style>
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body {{ font-family: Arial, sans-serif; line-height: 1.6; max-width: 800px; margin: 0 auto; padding: 20px; }}
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h1 {{ color: #2c3e50; }}
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h2 {{ color: #34495e; }}
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code {{ background-color: #f7f7f7; padding: 2px 5px; border-radius: 3px; }}
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pre {{ background-color: #f7f7f7; padding: 15px; border-radius: 5px; overflow-x: auto; }}
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</style>
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</head>
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<body>
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{html_content}
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</body>
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</html>
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"""
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# Create temporary files for HTML and PDF
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with tempfile.NamedTemporaryFile(delete=False, suffix='.html') as html_file:
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html_file.write(full_html.encode('utf-8'))
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html_path = html_file.name
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pdf_path = html_path.replace('.html', '.pdf')
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# Convert HTML to PDF using pdfkit
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try:
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pdfkit.from_file(html_path, pdf_path)
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os.unlink(html_path) # Clean up temporary HTML file
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return full_html, pdf_path
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except Exception as e:
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print(f"Error converting to PDF: {e}")
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if os.path.exists(html_path):
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os.unlink(html_path)
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return None, None
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def process_file(file):
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"""
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Process the uploaded file and return preview and PDF download
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"""
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if file is None:
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return None, None
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preview_html, pdf_path = convert_markdown_to_pdf(file)
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if preview_html is None or pdf_path is None:
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return "Error converting file", None
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return preview_html, pdf_path
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# Create Gradio interface
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with gr.Blocks() as app:
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gr.Markdown("# Markdown to PDF Converter")
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gr.Markdown("Upload a markdown file to convert it to PDF. You can preview the result and download the PDF.")
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with gr.Row():
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file_input = gr.File(label="Upload Markdown File", file_types=[".md", ".markdown"])
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with gr.Row():
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preview = gr.HTML(label="Preview")
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pdf_output = gr.File(label="Download PDF")
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file_input.upload(
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fn=process_file,
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inputs=[file_input],
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outputs=[preview, pdf_output]
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)
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if __name__ == "__main__":
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app.launch()
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