HTML to PDF conversion API —
hosted or on your own infrastructure

curl -X POST https://api.rendarium.com/convert/html \
  -H "Authorization: Bearer rnd_live_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"html": "<h1>Invoice #1024</h1>"}' \
  --output invoice.pdf

using var http = new HttpClient();
http.DefaultRequestHeaders.Authorization = new("Bearer", "rnd_live_YOUR_KEY");

var body = JsonContent.Create(new { html = "<h1>Invoice #1024</h1>" });
var response = await http.PostAsync(
    "https://api.rendarium.com/convert/html", body);

await File.WriteAllBytesAsync("invoice.pdf",
    await response.Content.ReadAsByteArrayAsync());

import requests

response = requests.post(
    "https://api.rendarium.com/convert/html",
    headers={"Authorization": "Bearer rnd_live_YOUR_KEY"},
    json={"html": "<h1>Invoice #1024</h1>"},
)
open("invoice.pdf", "wb").write(response.content)

var request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.rendarium.com/convert/html"))
    .header("Authorization", "Bearer rnd_live_YOUR_KEY")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(
        "{\"html\": \"<h1>Invoice #1024</h1>\"}"))
    .build();

HttpClient.newHttpClient().send(request,
    HttpResponse.BodyHandlers.ofFile(Path.of("invoice.pdf")));

const response = await fetch("https://api.rendarium.com/convert/html", {
  method: "POST",
  headers: {
    "Authorization": "Bearer rnd_live_YOUR_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ html: "<h1>Invoice #1024</h1>" }),
});
await fs.writeFile("invoice.pdf", Buffer.from(await response.arrayBuffer()));