curl -X POST "https://api.peppolpdf.eu/api/v1/generate-pdf" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@invoice.xml" \
  -o invoice.pdf

import fs from "fs";

const form = new FormData();
form.append("file", new Blob([fs.readFileSync("invoice.xml")], { type: "application/xml" }), "invoice.xml");
form.append("config", JSON.stringify({ locale: "en" }));

const res = await fetch("https://api.peppolpdf.eu/api/v1/generate-pdf", {
  method: "POST",
  headers: { "Authorization": `Bearer ${process.env.PEPPOLPDF_API_KEY!}` },
  body: form,
});

if (!res.ok) {
  const { error } = await res.json();
  throw new Error(error);
}

fs.writeFileSync("invoice.pdf", Buffer.from(await res.arrayBuffer()));

import os
import requests

with open("invoice.xml", "rb") as f:
    response = requests.post(
        "https://api.peppolpdf.eu/api/v1/generate-pdf",
        headers={"Authorization": f"Bearer {os.environ['PEPPOLPDF_API_KEY']}"},
        files={"file": ("invoice.xml", f, "application/xml")},
    )

response.raise_for_status()

with open("invoice.pdf", "wb") as f:
    f.write(response.content)

<?php

$curl = curl_init('https://api.peppolpdf.eu/api/v1/generate-pdf');

curl_setopt_array($curl, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_HTTPHEADER     => ['Authorization: Bearer ' . getenv('PEPPOLPDF_API_KEY')],
    CURLOPT_POSTFIELDS     => [
        'file' => new CURLFile('invoice.xml', 'application/xml', 'invoice.xml'),
    ],
]);

$pdf      = curl_exec($curl);
$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);

if ($httpCode !== 200) {
    throw new RuntimeException('API error: ' . $pdf);
}

file_put_contents('invoice.pdf', $pdf);

package main

import (
	"bytes"
	"io"
	"mime/multipart"
	"net/http"
	"os"
)

func main() {
	file, _ := os.Open("invoice.xml")
	defer file.Close()

	var body bytes.Buffer
	writer := multipart.NewWriter(&body)
	part, _ := writer.CreateFormFile("file", "invoice.xml")
	io.Copy(part, file)
	writer.Close()

	req, _ := http.NewRequest(http.MethodPost, "https://api.peppolpdf.eu/api/v1/generate-pdf", &body)
	req.Header.Set("Authorization", "Bearer " + os.Getenv("PEPPOLPDF_API_KEY"))
	req.Header.Set("Content-Type", writer.FormDataContentType())

	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()

	out, _ := os.Create("invoice.pdf")
	defer out.Close()
	io.Copy(out, resp.Body)
}

using var fileStream = File.OpenRead("invoice.xml");
using var content = new MultipartFormDataContent
{
    { new StreamContent(fileStream), "file", "invoice.xml" },
};

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + Environment.GetEnvironmentVariable("PEPPOLPDF_API_KEY"));

var response = await client.PostAsync("https://api.peppolpdf.eu/api/v1/generate-pdf", content);
response.EnsureSuccessStatusCode();

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

import okhttp3.*;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;

var client = new OkHttpClient();

var body = new MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", "invoice.xml",
        RequestBody.create(new File("invoice.xml"), MediaType.parse("application/xml")))
    .build();

var request = new Request.Builder()
    .url("https://api.peppolpdf.eu/api/v1/generate-pdf")
    .addHeader("Authorization", "Bearer " + System.getenv("PEPPOLPDF_API_KEY"))
    .post(body)
    .build();

try (var response = client.newCall(request).execute()) {
    if (!response.isSuccessful()) throw new IOException("API error: " + response);
    Files.write(Path.of("invoice.pdf"), response.body().bytes());
}

curl -X POST "https://api.peppolpdf.eu/api/v1/generate-pdf" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@invoice.xml" \
  -F 'config={"preset":"administration","locale":"nl"}' \
  -o invoice.pdf

import fs from "fs";

const form = new FormData();
form.append("file", new Blob([fs.readFileSync("invoice.xml")], { type: "application/xml" }), "invoice.xml");
form.append("config", JSON.stringify({ preset: "administration", locale: "nl" }));

const res = await fetch("https://api.peppolpdf.eu/api/v1/generate-pdf", {
  method: "POST",
  headers: { "Authorization": `Bearer ${process.env.PEPPOLPDF_API_KEY!}` },
  body: form,
});

if (!res.ok) {
  const { error } = await res.json();
  throw new Error(error);
}

fs.writeFileSync("invoice.pdf", Buffer.from(await res.arrayBuffer()));

import os
import json
import requests

with open("invoice.xml", "rb") as f:
    response = requests.post(
        "https://api.peppolpdf.eu/api/v1/generate-pdf",
        headers={"Authorization": f"Bearer {os.environ['PEPPOLPDF_API_KEY']}"},
        files={"file": ("invoice.xml", f, "application/xml")},
        data={"config": json.dumps({"preset": "administration", "locale": "nl"})},
    )

response.raise_for_status()

with open("invoice.pdf", "wb") as f:
    f.write(response.content)

<?php

$curl = curl_init('https://api.peppolpdf.eu/api/v1/generate-pdf');

curl_setopt_array($curl, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_HTTPHEADER     => ['Authorization: Bearer ' . getenv('PEPPOLPDF_API_KEY')],
    CURLOPT_POSTFIELDS     => [
        'file'   => new CURLFile('invoice.xml', 'application/xml', 'invoice.xml'),
        'config' => json_encode(['preset' => 'all', 'locale' => 'nl']),
    ],
]);

$pdf      = curl_exec($curl);
$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);

if ($httpCode !== 200) {
    throw new RuntimeException('API error: ' . $pdf);
}

file_put_contents('invoice.pdf', $pdf);

package main

import (
	"bytes"
	"io"
	"mime/multipart"
	"net/http"
	"os"
)

func main() {
	file, _ := os.Open("invoice.xml")
	defer file.Close()

	var body bytes.Buffer
	writer := multipart.NewWriter(&body)
	part, _ := writer.CreateFormFile("file", "invoice.xml")
	io.Copy(part, file)
	writer.WriteField("config", `{"preset":"administration","locale":"nl"}`)
	writer.Close()

	req, _ := http.NewRequest(http.MethodPost, "https://api.peppolpdf.eu/api/v1/generate-pdf", &body)
	req.Header.Set("Authorization", "Bearer " + os.Getenv("PEPPOLPDF_API_KEY"))
	req.Header.Set("Content-Type", writer.FormDataContentType())

	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()

	out, _ := os.Create("invoice.pdf")
	defer out.Close()
	io.Copy(out, resp.Body)
}

using var fileStream = File.OpenRead("invoice.xml");
using var content = new MultipartFormDataContent
{
    { new StreamContent(fileStream), "file", "invoice.xml" },
    { new StringContent("""{ \"preset\":\"administration\",\"locale\":\"nl\"}"""), "config" },
};

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + Environment.GetEnvironmentVariable("PEPPOLPDF_API_KEY"));

var response = await client.PostAsync("https://api.peppolpdf.eu/api/v1/generate-pdf", content);
response.EnsureSuccessStatusCode();

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

import okhttp3.*;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;

var client = new OkHttpClient();

var body = new MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", "invoice.xml",
        RequestBody.create(new File("invoice.xml"), MediaType.parse("application/xml")))
    .addFormDataPart("config", "{\"preset\":\"administration\",\"locale\":\"nl\"}")
    .build();

var request = new Request.Builder()
    .url("https://api.peppolpdf.eu/api/v1/generate-pdf")
    .addHeader("Authorization", "Bearer " + System.getenv("PEPPOLPDF_API_KEY"))
    .post(body)
    .build();

try (var response = client.newCall(request).execute()) {
    if (!response.isSuccessful()) throw new IOException("API error: " + response);
    Files.write(Path.of("invoice.pdf"), response.body().bytes());
}

curl -X POST "https://api.peppolpdf.eu/api/v1/generate-pdf" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@invoice.xml" \
  -F 'config={"locale":"en","fields":{"ID":true,"IssueDate":true,"DueDate":true,"LegalMonetaryTotal":true,"InvoiceLine":true}}' \
  -o invoice.pdf

import fs from "fs";

const config = {
  locale: "en",
  fields: {
    ID: true,
    IssueDate: true,
    DueDate: true,
    AccountingSupplierParty: {
      Party: { PartyName: true, PostalAddress: true, PartyTaxScheme: true },
    },
    AccountingCustomerParty: {
      Party: { PartyName: true, PostalAddress: true },
    },
    LegalMonetaryTotal: true,
    InvoiceLine: true,
  },
};

const form = new FormData();
form.append("file", new Blob([fs.readFileSync("invoice.xml")], { type: "application/xml" }), "invoice.xml");
form.append("config", JSON.stringify(config));

const res = await fetch("https://api.peppolpdf.eu/api/v1/generate-pdf", {
  method: "POST",
  headers: { "Authorization": `Bearer ${process.env.PEPPOLPDF_API_KEY!}` },
  body: form,
});

if (!res.ok) {
  const { error } = await res.json();
  throw new Error(error);
}

fs.writeFileSync("invoice.pdf", Buffer.from(await res.arrayBuffer()));

import os
import json
import requests

config = {
    "locale": "en",
    "fields": {
        "ID": True,
        "IssueDate": True,
        "DueDate": True,
        "AccountingSupplierParty": {
            "Party": {"PartyName": True, "PostalAddress": True, "PartyTaxScheme": True}
        },
        "AccountingCustomerParty": {
            "Party": {"PartyName": True, "PostalAddress": True}
        },
        "LegalMonetaryTotal": True,
        "InvoiceLine": True,
    },
}

with open("invoice.xml", "rb") as f:
    response = requests.post(
        "https://api.peppolpdf.eu/api/v1/generate-pdf",
        headers={"Authorization": f"Bearer {os.environ['PEPPOLPDF_API_KEY']}"},
        files={"file": ("invoice.xml", f, "application/xml")},
        data={"config": json.dumps(config)},
    )

response.raise_for_status()

with open("invoice.pdf", "wb") as f:
    f.write(response.content)

<?php

$config = [
    'locale' => 'en',
    'fields' => [
        'ID'        => true,
        'IssueDate' => true,
        'DueDate'   => true,
        'AccountingSupplierParty' => [
            'Party' => ['PartyName' => true, 'PostalAddress' => true, 'PartyTaxScheme' => true],
        ],
        'AccountingCustomerParty' => [
            'Party' => ['PartyName' => true, 'PostalAddress' => true],
        ],
        'LegalMonetaryTotal' => true,
        'InvoiceLine'        => true,
    ],
];

$curl = curl_init('https://api.peppolpdf.eu/api/v1/generate-pdf');

curl_setopt_array($curl, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_HTTPHEADER     => ['Authorization: Bearer ' . getenv('PEPPOLPDF_API_KEY')],
    CURLOPT_POSTFIELDS     => [
        'file'   => new CURLFile('invoice.xml', 'application/xml', 'invoice.xml'),
        'config' => json_encode($config),
    ],
]);

$pdf      = curl_exec($curl);
$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);

if ($httpCode !== 200) {
    throw new RuntimeException('API error: ' . $pdf);
}

file_put_contents('invoice.pdf', $pdf);

package main

import (
	"bytes"
	"encoding/json"
	"io"
	"mime/multipart"
	"net/http"
	"os"
)

func main() {
	config, _ := json.Marshal(map[string]any{
		"locale": "en",
		"fields": map[string]any{
			"ID": true, "IssueDate": true, "DueDate": true,
			"LegalMonetaryTotal": true, "InvoiceLine": true,
		},
	})

	file, _ := os.Open("invoice.xml")
	defer file.Close()

	var body bytes.Buffer
	writer := multipart.NewWriter(&body)
	part, _ := writer.CreateFormFile("file", "invoice.xml")
	io.Copy(part, file)
	writer.WriteField("config", string(config))
	writer.Close()

	req, _ := http.NewRequest(http.MethodPost, "https://api.peppolpdf.eu/api/v1/generate-pdf", &body)
	req.Header.Set("Authorization", "Bearer " + os.Getenv("PEPPOLPDF_API_KEY"))
	req.Header.Set("Content-Type", writer.FormDataContentType())

	resp, _ := http.DefaultClient.Do(req)
	defer resp.Body.Close()

	out, _ := os.Create("invoice.pdf")
	defer out.Close()
	io.Copy(out, resp.Body)
}

var config = new {
    locale = "en",
    fields = new {
        ID = true, IssueDate = true, DueDate = true,
        AccountingSupplierParty = new { Party = new { PartyName = true, PostalAddress = true, PartyTaxScheme = true } },
        AccountingCustomerParty = new { Party = new { PartyName = true, PostalAddress = true } },
        LegalMonetaryTotal = true,
        InvoiceLine = true,
    },
};

using var fileStream = File.OpenRead("invoice.xml");
using var content = new MultipartFormDataContent
{
    { new StreamContent(fileStream), "file", "invoice.xml" },
    { new StringContent(JsonSerializer.Serialize(config)), "config" },
};

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + Environment.GetEnvironmentVariable("PEPPOLPDF_API_KEY"));

var response = await client.PostAsync("https://api.peppolpdf.eu/api/v1/generate-pdf", content);
response.EnsureSuccessStatusCode();

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

import okhttp3.*;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;

var config = """
    {"locale":"en","fields":{"ID":true,"IssueDate":true,
    "DueDate":true,"LegalMonetaryTotal":true,"InvoiceLine":true}}
    """;

var client = new OkHttpClient();

var body = new MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", "invoice.xml",
        RequestBody.create(new File("invoice.xml"), MediaType.parse("application/xml")))
    .addFormDataPart("config", config)
    .build();

var request = new Request.Builder()
    .url("https://api.peppolpdf.eu/api/v1/generate-pdf")
    .addHeader("Authorization", "Bearer " + System.getenv("PEPPOLPDF_API_KEY"))
    .post(body)
    .build();

try (var response = client.newCall(request).execute()) {
    if (!response.isSuccessful()) throw new IOException("API error: " + response);
    Files.write(Path.of("invoice.pdf"), response.body().bytes());
}