An example form
Nobody built this form. It was read off a scanned permission slip, and this is the same page a respondent gets: one link, filled in on a phone, signed with a finger.
Nothing here is recorded. Type whatever you like. There is no submit button, no draft is saved, and no answer leaves your browser.
Your own form takes about a minute. Drop a PDF or a photo. The first one is free and needs no account.