Being able to preview files (such as pdfs) in the same window and/or browser would be extremely helpful.
We can connect https://www.filestack.com and create images for preview for document types FileStack supports (https://www.filestack.com/docs/file-processing/document-conversion/document ), but since FileStack is not a free service we will only enable it for paying customers.
Being able to open the PDF file in a browser instead of downloading it would be very helpful.
It would be cool if Freedcamp allowed previewing of files either as a separate tab linked to Adobe PDF viewer or embedded in the webpage as a pop out screen for easier access. It is slightly inconvenient to have to download a file every time you want to view it.
I vote for the simpliest version : open file directly in browser tab (images, pdf), not forcing download.