Get invoice PDF

The invoice as a PDF file, base64 encoded.

GET https://cotlet.dev/api/v1/fakturownia/invoices/{invoice_id}/pdf

read

Returns the PDF of one invoice as base64 with its file name. For an invoice sent to KSeF, the PDF shows the KSeF number, verification link and QR code.

Parameters

Parameters: get_invoice_pdf
NameTypeDescription
invoice_id integer required integer Invoice ID from list_invoices.

Request

cURL
curl https://cotlet.dev/api/v1/fakturownia/invoices/1/pdf \
  -H "Authorization: Bearer $COTLET_API_KEY"
Python
result = client.call("fakturownia", "get_invoice_pdf", {"invoice_id":1})
Node.js
const result = await cotlet.call('fakturownia', 'get_invoice_pdf', {"invoice_id":1});
CLI
cotlet call fakturownia get_invoice_pdf --data '{"invoice_id":1}'

Example response

JSON

{
  "invoice_id": 5120,
  "file_name": "14-10-2026-1.pdf",
  "content_base64": "JVBERi0xLjQKJcfsj6IK..."
}

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