How to force save the edited and filled pdf form when closing the tab without having to click the save button

I created a connector to a version 8 document server to start having some clients use the new pdf forms.
Using the “forceSave” mechanism the clients simply close the browser tab knowing that the file will be saved and the mechanism works with docx, pptx, xlsx.
With pdf forms on the other hand, it has been pointed out that by clicking on “Edit PDF” to fill the form, when they go to close the browser tab onlyoffice blocks them with a popup pointing out that they have to explicitly save the edited and filled pdf document, this thing they would like to avoid and have the same behavior as docx, xlsx, pptx.
Is there any additional parameter to set in the client-side call or in the server itself to “force save pdf in edit” and avoid the additional click on the “save” button to the operator ?

Hello @4535992,

Could you please provide the version of OnlyOffice Docs being used, as well as send the editor initialization config for verification?

The current version i’m using is: Version: 8.2.1 (build:38)

Hello @4535992

First of all, please note that newer version of Document Server is available.

As for the problem: in which collaborative mode you are running editors? Is that Fast mode or Strict mode?
By the way, if your goal is to fill forms, following article may be useful for you:

The default strict mode is “fast.”

Maybe I expressed myself wrongly , the pdf form fill works perfectly, if the pdf is set to “edit” the operator fills the form successfully, but if the operator does not explicitly click the save button in the upper left corner the editor does not save the changes to him because the indicated popup dialog appears and he is used to close the browser tab directly (which is perhaps more correct).

I hadn’t seen that 8.3.0 had come out O.O, I need to look in to.

Not quite following. “Strict” and “fast” are options, don’t quite understand what is meant by “default strict mode”. Anyway, how do you enable it by default?
I did not manage to reproduce the issue with Autosave enabled and Fast co-editing mode set up in Advanced settings of the editor (accessible from File tab).