I used FolderSync to sync files from my Dropbox, so that I can sync between devices the pdfs, along with notes / annotations taken using Neoreader. However, when I open the a pdf from external apps, the file will be copied to /Download, even the file exists locally. What makes it more annoying is that, even when I ticked
settings -> Export settings -> Saved to the same directory as the source file
The copy will still happen! And all changes made was on the file that copied to the folder /Download.
Please make the magic happen: if a file exists locally, don’t copy it to other places, and allow saving/override the file in its original place. Thanks!