NEW, Secure PDFs can be uploaded.
This feature has many important implications. Even beyond the photographic formats of JPG, PNG, GIF, BMP, and TIFF, a PDF can be uploaded. The maximum file size is 10 MB. The ability to collaborate with pictures and words is important. Adding a PDF is a big deal. Now we can transmit a lengthy text document for in-depth discussion by the collaborators regardless of format or software.
Interoperability? This is an easy, no installation way to begin.