Update app.py

app.py

@@ -74,8 +74,10 @@ def app_outputs(uploaded_pdf):
         for i in range(num_images):
             if filename != path+"/blank.png": img_file = f"img_{i}_" + filename.replace(".pdf", ".png")
             else: img_file = filename.replace(".pdf", ".png")
-            images[i].save(img_file)
-            img_files.append(img_file)
+            if not os.path.exists(img_file):
+               os.makedirs(os.path.dirname(img_file))
+               images[i].save(img_file)
+               img_files.append(img_file)
 
         if num_images < max_imgboxes:
             img_files += [image_blank]*(max_imgboxes - num_images)