Upload Interaction

Going deep into the way user interacts with upload field, designing all the interactions and preparing it for development.

Couple of things behind this solution:

- Only one file can be uploaded at once. User can have only one policy in 95% of cases.

- Sometimes user will have to upload 2 files, so I've added this small tweak at the last stage.

- Most files are 50-100MB size. This is why there is simple progress bar.

- Upload can't be canceled, that's technical request.

- We need to detect type of file at the beginning. That is business request, can't work with anything except pdf.