I have something really strange going on here with the DT 4 beta: When I ask ChatGPT 4.0 in DT 4 to give me the “Main Points” for a document by pushing the “Summarize via Chat” button, the response is in English for markdown text, but in German for PDFs. I’m located in the U.S. and don’t speak German.
Is this a bug or am I missing a setting somewhere?
What’s the language of the PDF? Usually the summary should retain the language of the document.
I’m in the Netherlands (MacOS 15.3.1 set to Dutch) and a PDF was also processed in German. After a reboot I cannot find the option to summarize anymore… It used to be there with a blue asterisk.
What is in the menubar next to the Apple menu on the left?
You mean if it went back to DT3 by accident? I removed (compressed by your suggestion) it.
(It’s probably the beta not recognizing I just paid for updates til April 2026)
Indeed, I was wondering that.
Which option specifically are you missing? Edit > Summarize via Chat? Tools > Chat?
Well, the option to summarize is indeed in the Edit menu. But no longer in the context menu (right click).
As for the German language: the reboot did fix that.
A not fully cropped, full-resolution screen capture would be useful
It’s available in the context menu of document previews. And since version 4 the command Tools > Summarize Annotations is only part of the main menu (due to the length of context menus).
The MacOS is 15.4 (24E248)
Yes, it persists after a reboot
The language is English. I have no German language documents anywhere in my system.
I was testing PDFs and text files and the summary was consistently in German for PDFs and English for texts. I left for 10 minutes and came back, and now both PDF main point summaries and plain text summaries are in English. I made no changes at all between testing sessions.
There is definitely something odd going on here.
Could you share a PDF document that’s causing this issue? The used prompt and model are of course important too. Thanks!
I was using the “Summarize via Chat” icon on the menu bar above the document view. The model was ChatGPT 4.0. The documents were all in English.
Now, without restarting the app or the Mac, every PDF document I try this on is showing a summary in English. Before they were showing in German. I didn’t make any settings changes between the time everything was showing in German, and now everything is showing in English. It just started working correctly. 
Let us know if it changes again
