Update app.py

app.py

@@ -1,63 +1,37 @@
-from flask import Flask, send_file, render_template
+from flask import Flask, render_template, request, send_file
 import requests
 from io import BytesIO
 
+app = Flask(__name__)  
 
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-app = Flask(__name__)
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+# Main route to render HTML template
 @app.route("/", methods=["GET", "POST"])
-def get_inf_to_measure():
-    """ 
-    Render the main GUI with the iframe.
-    """
+def getInfotoMeasure():
     return render_template("gui.html")
 
+# Route to serve PDF with a specified page
+@app.route('/view-pdf', methods=['GET'])
+def download_pdf():
+    page = request.args.get('page', default=1)  # Get page number from query parameter
+    dropbox_link = 'https://www.dropbox.com/scl/fi/fjykwhhn9gu9t3kqrflxd/LA002-NOR-ZZ-ZZ-T-A-2403_Architectural-Specification-F10-Brick-and-Block-Walling_A4-_C01.pdf?rlkey=ek9i66i79m0hwp8z5yjs6rp5p&st=jh05a6qs&dl=0'
 
+    # Modify Dropbox link to enable direct download
+    if 'dl=0' in dropbox_link:
+        dropbox_link = dropbox_link.replace('dl=0', 'dl=1')
 
+    response = requests.get(dropbox_link)
 
+    if response.status_code != 200:
+        return "Failed to download the PDF.", 500
 
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-# Route to serve the PDF in iframe
-@app.route('/download-pdf', methods=['GET'])
-def serve_pdf():
-    link = 'https://www.dropbox.com/scl/fi/fjykwhhn9gu9t3kqrflxd/LA002-NOR-ZZ-ZZ-T-A-2403_Architectural-Specification-F10-Brick-and-Block-Walling_A4-_C01.pdf?rlkey=ek9i66i79m0hwp8z5yjs6rp5p&st=jh05a6qs&dl=0'
-    if 'dl=0' in link:
-        link = link.replace('dl=0', 'dl=1')
-    response = requests.get(link)
     pdf_content = BytesIO(response.content)
-    return send_file(pdf_content, download_name="document.pdf", mimetype="application/pdf")
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+    return send_file(
+        pdf_content,
+        mimetype='application/pdf',
+        as_attachment=False,
+        download_name=f"document_page_{page}.pdf"
+    )
 
 if __name__ == '__main__':
-    # Run the application with a specified host and port
-    app.run(host='0.0.0.0', port=7860)
+    app.run(host='0.0.0.0', port=7860)