Login to web portal: https://app.veryfi.com/

Once logged in, navigate to Documents (from left menu).

In the Documents view, you will see a prefix checkbox next to each document and one in the header.
– Pressing the top header one activates de/select all and
– Pressing the individual one select a single document.

Then press the bulk action you want to apply to the selected documents.

Make the right corrections and you are done. It’s that simple.