Poptin connects with Documentero to turn new leads into ready-to-use documents. When someone fills out a popup or form on your site, their details can be sent directly to Documentero to create files like welcome letters, proposals, or signup confirmations. The integration works through API, Zapier, or Make, giving you flexible ways to generate .docx, .pdf, or .xlsx files from your templates. This helps you instantly produce personalized documents without manual data entry.