Default way is drag and drop which adds a copy of the file to your attachments.
Another way is to put a file reference into your note (in a link). Your file stays where it is and you have a link to it in a note. Links are opened by default apps as per your OS config.
Since I use Keyboard Maestro on Mac, I wrap the file references in a KM callback url before I insert them in notes. That way you can run custom macros upon clicking a link and even pass parameters. For example, I add page numbers to links to PDFs and when I open such a link, it opens the PDF to the right page.
HSO|9 months ago
Another way is to put a file reference into your note (in a link). Your file stays where it is and you have a link to it in a note. Links are opened by default apps as per your OS config.
Since I use Keyboard Maestro on Mac, I wrap the file references in a KM callback url before I insert them in notes. That way you can run custom macros upon clicking a link and even pass parameters. For example, I add page numbers to links to PDFs and when I open such a link, it opens the PDF to the right page.