Try rename pdf file with web page title after download finish.

core/browser.py

@@ -459,7 +459,14 @@ class BrowserBuffer(Buffer):
 
     def notify_print_message(self, file_path, success):
         if success:
-            self.message_to_emacs.emit("Successfully saved current webpage as '{}'.".format(file_path))
+            # Try to rename pdf file with title.
+            # Use host name if title include invalid file char.
+            title_path = os.path.join(os.path.expanduser(self.emacs_var_dict["eaf-browser-download-path"]), "{}.pdf".format(self.title))
+            try:
+                os.rename(file_path, title_path)
+                self.message_to_emacs.emit("Successfully saved current webpage as '{}'.".format(title_path))
+            except Exception:
+                self.message_to_emacs.emit("Successfully saved current webpage as '{}'.".format(file_path))
         else:
             self.message_to_emacs.emit("Failed to save current webpage as '{}'.".format(file_path))
 
@@ -621,7 +628,7 @@ class BrowserBuffer(Buffer):
             parsed = urlparse(self.url)
             qd = parse_qs(parsed.query, keep_blank_values=True)
             pdf_path = os.path.join(os.path.expanduser(self.emacs_var_dict["eaf-browser-download-path"]), "{}.pdf".format(parsed.netloc))
-            self.message_to_emacs.emit("Saving to " + pdf_path + "...")
+            self.message_to_emacs.emit("Saving as pdf...")
             self.buffer_widget.web_page.printToPdf(pdf_path)
 
     def cancel_input_message(self, result_tag):

core/buffer.py

@@ -174,6 +174,7 @@ class Buffer(QGraphicsScene):
         self.background_color = background_color
         self.setBackgroundBrush(QBrush(self.background_color))
         self.is_dark_mode = is_dark_mode
+        self.title = ""
 
         self.buffer_widget = None
 
@@ -221,6 +222,7 @@ class Buffer(QGraphicsScene):
             self.buffer_widget.deleteLater()
 
     def change_title(self, title):
+        self.title = title
         self.update_details.emit(self.buffer_id, title, self.url)
 
     def request_close_buffer(self):