A minimal letter on your letterhead. Adjust it in the drag-and-drop editor, then generate one personalized PDF per recipient from your app, your no-code tools or your AI assistant.

Your logo, company name, address and phone number at the top of the page.
Name, role, organization and address, with the date of the letter.
A clear “RE:” line above the body of the letter.
The full text passed in as one field, paragraphs included.
The signatory’s name and role, with your legal name in the footer.
One REST call per letter. Every field below can come from your CRM, your mailing list or your AI assistant.
company_namecompany_legal_namecompany_addresscompany_address_shortcompany_phonecompany_logoletter_daterecipient_blocksubjectbodysender_namesender_rolecurl -X POST https://pdfstork.com/api/v1/templates/YOUR_TEMPLATE_ID/generate \
-H "Authorization: Bearer YOUR_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"data": {
"company_name": "Halcyon Partners",
"letter_date": "June 09, 2025",
"recipient_block": "Ms. Eleanor Whitfield\nDirector of Operations\nMeridian Health Group\n550 Beacon Street, Boston, MA 02115",
"subject": "Proposal for Operational Review"
},
"output": "url"
}'