Update app.py

app.py

@@ -69,7 +69,24 @@ def generate_tex(file_path):
 
     #tex_code = load_txt("latex_code.tex")
     return result.text
-
+def transform_to_pdf(tex_content):
+    #Read the .tex file
+    # API endpoint for LaTeX Online
+    url = "https://www.latexonline.cc/compile"
+    
+    # Send the LaTeX file as text data
+    response = requests.post(url, data={"text": tex_content, "compiler": "pdflatex"})
+    
+    # Check if the request was successful
+    if response.status_code == 200 and response.headers.get("Content-Type") == "application/pdf":
+        # Save the returned PDF file
+        pdf_filename = "latex_code.pdf"
+        with open(pdf_filename, "wb") as pdf_file:
+            pdf_file.write(response.content)
+        print(f"✅ PDF saved as {pdf_filename}")
+    else:
+        print(f"❌ Error: Could not generate PDF (Status Code: {response.status_code})")
+        
 def generate_pdf_png(latex_code):
     ## output latex_code.pdf
     # remove
@@ -80,15 +97,7 @@ def generate_pdf_png(latex_code):
     print("file saved")
     # Compile with pdflatex
     #os.system("pdflatex latex_code.tex")
-    import subprocess
-    try:
-        # Set a timeout (in seconds)
-        result = subprocess.run(['pdflatex'],input=b'latex_code.tex\n', timeout=20, 
-                            stdout=subprocess.PIPE, 
-                            stderr=subprocess.PIPE)
-        print(result.stdout.decode())
-    except subprocess.TimeoutExpired:
-        print("Command timed out")
+    transform_to_pdf(latex_code)
     # Convert PDF to image using pdf2image (needs poppler installed)
     pdf_file = "latex_code.pdf"
     print("already have a pdf")