Valid file types are
.png .jpg .jpeg .pdf
Valid file names consist of the following characters
words, numbers, spaces and dots (file extension).
You can upload max 2 files at a time with a max size of 2MB (to help prevent timeout issues with slower connections or mobile devices)
Naming Convention: Use short but descriptive file names that would make sense when searching for that image or document. (Spaces will be converted to underscores)