The add-on would be a drop down list that when opening a document/PDF sitting in OneDrive through the browser, gives you the option to "open with" other programs so one can add a signature, or date the document etc. and then save over the same document without exiting the Browser.

At the moment, one has to save the document back to OneDrive and in Desktop and then re-upload it into Xaas service. This is not very handy, especially say using smartsheet, you attach a document, from OneDrive, then to add a signature there is no direct feature through the browser to open with other programs and this defeats the purpose of Xaas.

Google Drive has an add-on that allows to do that, but I want to move to Microsoft and start using OneDrive with Smartsheet, the integration with signatures and over-saving documents in OneDrive through the Browser is very poor. Would be great to add the add-on/plug-in to integrate with other programs that allow to add images and signatures without having to download the document, exiting the browser and over-saving it over.