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🚀 API Documentatie

Integreer PDF-verwerking in uw applicaties. Comprimeer, voeg samen, splits PDF's en haal tekst eruit met onze krachtige REST API.

✓ Inbegrepen in Premium & Business abonnementen

🔐 Authenticatie

Alle API-verzoeken vereisen authenticatie met een Bearer token. U kunt uw API-sleutels ophalen uit uw dashboard.

Authorization Header

Voeg uw geheime sleutel toe in de Authorization header:

Authorization: Bearer sk_live_your_secret_key_here

Tarieflimieten

60
verzoeken/minuut (default)
100 MB
maximale bestandsgrootte
20
maximaal aantal bestanden (samenvoegen)

📦 PDF Comprimeren

Reduceer PDF-bestandsgrootte terwijl de kwaliteit behouden blijft. Kies tussen laag, gemiddeld of hoog compressieniveau.

POST https://pdf-ninja.io/api/v1/pdf/compress

Parameters

Parameter Type Beschrijving
pdf_base64 * string Base64 gecodeerd PDF-bestand (of gebruik pdf_url)
pdf_url string URL om de PDF van te downloaden
level string Compressieniveau: low, medium (standaard), high
webhook_url optional string URL om het resultaat te ontvangen wanneer de verwerking voltooid is

Codevoorbeelden

curl -X POST https://pdf-ninja.io/api/v1/pdf/compress \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "pdf_base64": "JVBERi0xLjQK...",
    "level": "medium"
  }'
<?php
$apiKey = 'sk_live_your_secret_key';
$pdfContent = base64_encode(file_get_contents('document.pdf'));

$ch = curl_init('https://pdf-ninja.io/api/v1/pdf/compress');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey,
        'Content-Type: application/json'
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'pdf_base64' => $pdfContent,
        'level' => 'medium'
    ])
]);

$response = curl_exec($ch);
$result = json_decode($response, true);

if ($result['success']) {
    file_put_contents('compressed.pdf', base64_decode($result['data']['pdf_base64']));
    echo "Compressed! Saved " . $result['data']['savings_percent'] . "%";
}
?>
const apiKey = 'sk_live_your_secret_key';

// Read file and convert to base64
const fileInput = document.querySelector('input[type="file"]');
const file = fileInput.files[0];
const reader = new FileReader();

reader.onload = async function(e) {
    const base64 = e.target.result.split(',')[1];

    const response = await fetch('https://pdf-ninja.io/api/v1/pdf/compress', {
        method: 'POST',
        headers: {
            'Authorization': `Bearer ${apiKey}`,
            'Content-Type': 'application/json'
        },
        body: JSON.stringify({
            pdf_base64: base64,
            level: 'medium'
        })
    });

    const result = await response.json();

    if (result.success) {
        // Download compressed PDF
        const link = document.createElement('a');
        link.href = `data:application/pdf;base64,${result.data.pdf_base64}`;
        link.download = 'compressed.pdf';
        link.click();

        console.log(`Saved ${result.data.savings_percent}%`);
    }
};

reader.readAsDataURL(file);
import requests
import base64

api_key = 'sk_live_your_secret_key'

# Read PDF and encode to base64
with open('document.pdf', 'rb') as f:
    pdf_base64 = base64.b64encode(f.read()).decode('utf-8')

response = requests.post(
    'https://pdf-ninja.io/api/v1/pdf/compress',
    headers={
        'Authorization': f'Bearer {api_key}',
        'Content-Type': 'application/json'
    },
    json={
        'pdf_base64': pdf_base64,
        'level': 'medium'
    }
)

result = response.json()

if result['success']:
    # Save compressed PDF
    compressed_data = base64.b64decode(result['data']['pdf_base64'])
    with open('compressed.pdf', 'wb') as f:
        f.write(compressed_data)

    print(f"Saved {result['data']['savings_percent']}%")
const fs = require('fs');
const axios = require('axios');

const apiKey = 'sk_live_your_secret_key';

// Read PDF and encode to base64
const pdfBuffer = fs.readFileSync('document.pdf');
const pdfBase64 = pdfBuffer.toString('base64');

async function compressPdf() {
    const response = await axios.post(
        'https://pdf-ninja.io/api/v1/pdf/compress',
        {
            pdf_base64: pdfBase64,
            level: 'medium'
        },
        {
            headers: {
                'Authorization': `Bearer ${apiKey}`,
                'Content-Type': 'application/json'
            }
        }
    );

    if (response.data.success) {
        // Save compressed PDF
        const compressedBuffer = Buffer.from(
            response.data.data.pdf_base64,
            'base64'
        );
        fs.writeFileSync('compressed.pdf', compressedBuffer);

        console.log(`Saved ${response.data.data.savings_percent}%`);
    }
}

compressPdf();

✅ Succesvolle Response

{
  "success": true,
  "data": {
    "pdf_base64": "JVBERi0xLjQK...",
    "original_size": 5242880,
    "compressed_size": 2621440,
    "savings_percent": 50.0,
    "method": "ghostscript"
  },
  "request_id": "abc123-def456"
}

📎 PDF's Samenvoegen

Combineer meerdere PDF-bestanden tot één document. Ondersteunt maximaal 20 bestanden.

POST https://pdf-ninja.io/api/v1/pdf/merge

Parameters

Parameter Type Beschrijving
files * array Array van PDF-objecten met pdf_base64 of pdf_url
page_size string Uitvoer paginaformaat: original (standaard), A4, A3, Letter

Codevoorbeelden

curl -X POST https://pdf-ninja.io/api/v1/pdf/merge \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "files": [
      {"pdf_base64": "JVBERi0xLjQK..."},
      {"pdf_url": "https://example.com/document.pdf"},
      {"pdf_base64": "JVBERi0xLjQK..."}
    ],
    "page_size": "A4"
  }'
<?php
$apiKey = 'sk_live_your_secret_key';

$files = [
    ['pdf_base64' => base64_encode(file_get_contents('doc1.pdf'))],
    ['pdf_base64' => base64_encode(file_get_contents('doc2.pdf'))],
    ['pdf_url' => 'https://example.com/doc3.pdf']
];

$ch = curl_init('https://pdf-ninja.io/api/v1/pdf/merge');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey,
        'Content-Type: application/json'
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'files' => $files,
        'page_size' => 'A4'
    ])
]);

$response = curl_exec($ch);
$result = json_decode($response, true);

if ($result['success']) {
    file_put_contents('merged.pdf', base64_decode($result['data']['pdf_base64']));
    echo "Merged {$result['data']['files_count']} files, {$result['data']['total_pages']} pages";
}
?>
import requests
import base64

api_key = 'sk_live_your_secret_key'

files = []
for filename in ['doc1.pdf', 'doc2.pdf', 'doc3.pdf']:
    with open(filename, 'rb') as f:
        files.append({
            'pdf_base64': base64.b64encode(f.read()).decode('utf-8')
        })

response = requests.post(
    'https://pdf-ninja.io/api/v1/pdf/merge',
    headers={
        'Authorization': f'Bearer {api_key}',
        'Content-Type': 'application/json'
    },
    json={
        'files': files,
        'page_size': 'A4'
    }
)

result = response.json()

if result['success']:
    merged_data = base64.b64decode(result['data']['pdf_base64'])
    with open('merged.pdf', 'wb') as f:
        f.write(merged_data)

    print(f"Merged {result['data']['files_count']} files")

✅ Succesvolle Response

{
  "success": true,
  "data": {
    "pdf_base64": "JVBERi0xLjQK...",
    "files_count": 3,
    "total_pages": 25,
    "size": 2048000,
    "method": "ghostscript"
  }
}

✂️ PDF Splitsen

Splits een PDF in meerdere bestanden op pagina's, bereiken of gelijke delen.

POST https://pdf-ninja.io/api/v1/pdf/split

Parameters

Parameter Type Beschrijving
pdf_base64 * string Base64 gecodeerd PDF-bestand (of gebruik pdf_url)
mode string Splitsingsmodus: pages (1 per pagina), range (aangepast), fixed (N pagina's elk), equal (N gelijke delen)
options object Modus-specifieke opties (zie voorbeelden hieronder)

Codevoorbeelden

# Split by custom page ranges
curl -X POST https://pdf-ninja.io/api/v1/pdf/split \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "pdf_base64": "JVBERi0xLjQK...",
    "mode": "range",
    "options": {
      "pages": [[1, 2, 3], [4, 5], [6, 7, 8, 9, 10]]
    }
  }'

# Split into 3 equal parts
curl -X POST https://pdf-ninja.io/api/v1/pdf/split \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "pdf_base64": "JVBERi0xLjQK...",
    "mode": "equal",
    "options": {"num_files": 3}
  }'
import requests
import base64

api_key = 'sk_live_your_secret_key'

with open('document.pdf', 'rb') as f:
    pdf_base64 = base64.b64encode(f.read()).decode('utf-8')

# Split into fixed-size chunks (5 pages each)
response = requests.post(
    'https://pdf-ninja.io/api/v1/pdf/split',
    headers={
        'Authorization': f'Bearer {api_key}',
        'Content-Type': 'application/json'
    },
    json={
        'pdf_base64': pdf_base64,
        'mode': 'fixed',
        'options': {'pages_per_file': 5}
    }
)

result = response.json()

if result['success']:
    for i, file in enumerate(result['data']['files']):
        pdf_data = base64.b64decode(file['pdf_base64'])
        with open(f'split_{i+1}.pdf', 'wb') as f:
            f.write(pdf_data)
        print(f"Created split_{i+1}.pdf with pages {file['pages']}")

✅ Succesvolle Response

{
  "success": true,
  "data": {
    "original_pages": 15,
    "files_count": 3,
    "files": [
      {
        "pdf_base64": "JVBERi0...",
        "pages": [1, 2, 3],
        "page_count": 3,
        "size": 512000,
        "name": "part_1"
      },
      ...
    ]
  }
}

👁️ OCR - Tekst Extraheren

Haal tekst uit PDF's en afbeeldingen met optische tekenherkenning. Ondersteunt 30+ talen.

POST https://pdf-ninja.io/api/v1/pdf/ocr

Parameters

Parameter Type Beschrijving
file_base64 * string Base64 gecodeerd PDF of afbeelding (of gebruik file_url)
language string Taalcode: eng (standaard), spa, fra, deu, ita, por, chi_sim, jpn, kor, ara...
output_format string Uitvoerformaat: text (standaard) of json (met uitsplitsing per pagina)

Codevoorbeelden

curl -X POST https://pdf-ninja.io/api/v1/pdf/ocr \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "file_base64": "JVBERi0xLjQK...",
    "language": "eng",
    "output_format": "json"
  }'
import requests
import base64

api_key = 'sk_live_your_secret_key'

# OCR a scanned PDF in Spanish
with open('scanned_document.pdf', 'rb') as f:
    file_base64 = base64.b64encode(f.read()).decode('utf-8')

response = requests.post(
    'https://pdf-ninja.io/api/v1/pdf/ocr',
    headers={
        'Authorization': f'Bearer {api_key}',
        'Content-Type': 'application/json'
    },
    json={
        'file_base64': file_base64,
        'language': 'spa',
        'output_format': 'json'
    }
)

result = response.json()

if result['success']:
    print(f"Extracted {result['data']['word_count']} words")
    print(result['data']['text'])

✅ Succesvolle Response

{
  "success": true,
  "data": {
    "text": "This is the extracted text from the document...",
    "word_count": 1234,
    "char_count": 5678,
    "method": "python",
    "pages": [
      {"page": 1, "text": "Page 1 content..."},
      {"page": 2, "text": "Page 2 content..."}
    ]
  }
}

📋 Taakstatus Controleren

Controleer de status en haal resultaten op van asynchrone taken.

GET https://pdf-ninja.io/api/v1/pdf/jobs/{job_id}

Codevoorbeelden

# Get specific job status
curl https://pdf-ninja.io/api/v1/pdf/jobs/job_abc123 \
  -H "Authorization: Bearer sk_live_your_secret_key"

# List all jobs
curl "https://pdf-ninja.io/api/v1/pdf/jobs?status=completed&page=1" \
  -H "Authorization: Bearer sk_live_your_secret_key"

✅ Succesvolle Response

{
  "success": true,
  "data": {
    "job_id": "job_abc123",
    "operation": "compress",
    "status": "completed",
    "created_at": "2025-01-05T12:00:00Z",
    "completed_at": "2025-01-05T12:00:05Z",
    "data": {
      "pdf_base64": "JVBERi0...",
      "savings_percent": 45.2
    }
  }
}

✍️ E-Signature API

Send documents for electronic signature. Create signature requests, track status, send reminders, and download signed documents with certificates.

Required Permissions

Your API key needs the following permissions for e-signature operations:

signature:create signature:read signature:cancel signature:remind

Create Signature Request

Send a document to one or more signers for electronic signature.

POST https://pdf-ninja.io/api/v1/signature-requests

Parameters

Name Type Description
title * string Document title shown to signers
signers * array Array of signers with name, email, and optional fields
pdf_base64 * string Base64-encoded PDF document (or use pdf_url)
pdf_url string URL to download PDF (alternative to pdf_base64)
message optional string Custom message to include in email to signers
expires_in_days optional integer Days until expiration (1-30, default: 7)
send_emails optional boolean Send email invitations automatically (default: true)
external_id optional string Your custom ID to reference this request
metadata optional object Custom metadata to store with the request
webhook_tag optional string Tag to filter which webhooks receive events for this request. Only webhooks with matching tag will be notified. Max 50 chars, alphanumeric with hyphens/underscores.

Signer Object

Name Type Description
name * string Signer's full name
email * string Signer's email address
order optional integer Signing order (for sequential signing)
fields optional array Signature fields (if empty, signer can place signature freely)

Field Types

signature Signature field (drawn or typed)
initials Initials field
date Date field (auto-filled)
name Full name field (auto-filled)
email Email field (auto-filled)
text Free text input
checkbox Checkbox field

Code Examples

curl -X POST https://pdf-ninja.io/api/v1/signature-requests \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -H "Content-Type: application/json" \
  -d '{
    "title": "Service Agreement",
    "message": "Please sign this agreement at your earliest convenience.",
    "signers": [
      {
        "name": "John Doe",
        "email": "[email protected]"
      },
      {
        "name": "Jane Smith",
        "email": "[email protected]",
        "fields": [
          {
            "type": "signature",
            "page": 1,
            "x": 100,
            "y": 500,
            "width": 200,
            "height": 60
          }
        ]
      }
    ],
    "pdf_base64": "JVBERi0xLjQK...",
    "external_id": "contract-2024-001",
    "expires_in_days": 14
  }'
<?php
$apiKey = 'sk_live_your_secret_key';
$pdfContent = base64_encode(file_get_contents('contract.pdf'));

$data = [
    'title' => 'Service Agreement',
    'message' => 'Please sign this agreement.',
    'signers' => [
        [
            'name' => 'John Doe',
            'email' => '[email protected]'
        ],
        [
            'name' => 'Jane Smith',
            'email' => '[email protected]'
        ]
    ],
    'pdf_base64' => $pdfContent,
    'external_id' => 'contract-2024-001',
    'expires_in_days' => 14
];

$ch = curl_init('https://pdf-ninja.io/api/v1/signature-requests');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey,
        'Content-Type: application/json'
    ],
    CURLOPT_POSTFIELDS => json_encode($data)
]);

$response = curl_exec($ch);
$result = json_decode($response, true);

if ($result['success']) {
    echo "Signature request created: " . $result['data']['id'] . "\n";

    // Get signing URLs for each signer
    foreach ($result['data']['signers'] as $signer) {
        echo $signer['name'] . ": " . $signer['sign_url'] . "\n";
    }
}
?>
import requests
import base64

api_key = 'sk_live_your_secret_key'

# Read PDF and encode to base64
with open('contract.pdf', 'rb') as f:
    pdf_base64 = base64.b64encode(f.read()).decode('utf-8')

data = {
    'title': 'Service Agreement',
    'message': 'Please sign this agreement.',
    'signers': [
        {'name': 'John Doe', 'email': '[email protected]'},
        {'name': 'Jane Smith', 'email': '[email protected]'}
    ],
    'pdf_base64': pdf_base64,
    'external_id': 'contract-2024-001',
    'expires_in_days': 14
}

response = requests.post(
    'https://pdf-ninja.io/api/v1/signature-requests',
    headers={
        'Authorization': f'Bearer {api_key}',
        'Content-Type': 'application/json'
    },
    json=data
)

result = response.json()

if result.get('success'):
    print(f"Created: {result['data']['id']}")

    # Get signing URLs
    for signer in result['data']['signers']:
        print(f"{signer['name']}: {signer['sign_url']}")
const apiKey = 'sk_live_your_secret_key';

// Convert file to base64
async function fileToBase64(file) {
    return new Promise((resolve) => {
        const reader = new FileReader();
        reader.onload = () => resolve(reader.result.split(',')[1]);
        reader.readAsDataURL(file);
    });
}

async function createSignatureRequest(file) {
    const pdfBase64 = await fileToBase64(file);

    const response = await fetch('https://pdf-ninja.io/api/v1/signature-requests', {
        method: 'POST',
        headers: {
            'Authorization': `Bearer ${apiKey}`,
            'Content-Type': 'application/json'
        },
        body: JSON.stringify({
            title: 'Service Agreement',
            message: 'Please sign this agreement.',
            signers: [
                { name: 'John Doe', email: '[email protected]' },
                { name: 'Jane Smith', email: '[email protected]' }
            ],
            pdf_base64: pdfBase64,
            external_id: 'contract-2024-001',
            expires_in_days: 14
        })
    });

    const result = await response.json();

    if (result.success) {
        console.log('Created:', result.data.id);

        // Signing URLs for embedding or redirecting
        result.data.signers.forEach(signer => {
            console.log(`${signer.name}: ${signer.sign_url}`);
        });
    }

    return result;
}

✅ Success Response

{
  "success": true,
  "data": {
    "id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
    "status": "pending",
    "title": "Service Agreement",
    "signers": [
      {
        "name": "John Doe",
        "email": "[email protected]",
        "order": 1,
        "status": "pending",
        "sign_url": "https://pdf-ninja.io/pdf_esignature_sign.php?token=abc123..."
      },
      {
        "name": "Jane Smith",
        "email": "[email protected]",
        "order": 2,
        "status": "pending",
        "sign_url": "https://pdf-ninja.io/pdf_esignature_sign.php?token=def456..."
      }
    ],
    "external_id": "contract-2024-001",
    "created_at": "2024-01-15T10:30:00Z",
    "expires_at": "2024-01-29T10:30:00Z"
  },
  "request_id": "req_xyz789"
}

List Signature Requests

Retrieve a paginated list of your signature requests with optional filters.

GET https://pdf-ninja.io/api/v1/signature-requests

Query Parameters

page integer Page number (default: 1)
per_page integer Items per page (1-100, default: 20)
status string Filter by status: pending, in_progress, completed, cancelled, expired
external_id string Filter by your external ID
# List all signature requests
curl "https://pdf-ninja.io/api/v1/signature-requests?page=1&per_page=20" \
  -H "Authorization: Bearer sk_live_your_secret_key"

# Filter by status
curl "https://pdf-ninja.io/api/v1/signature-requests?status=completed" \
  -H "Authorization: Bearer sk_live_your_secret_key"

# Find by external ID
curl "https://pdf-ninja.io/api/v1/signature-requests?external_id=contract-2024-001" \
  -H "Authorization: Bearer sk_live_your_secret_key"

Get Signature Request Details

Retrieve detailed information about a specific signature request including signer status.

GET https://pdf-ninja.io/api/v1/signature-requests/{id}
curl https://pdf-ninja.io/api/v1/signature-requests/sr_a1b2c3d4e5f6g7h8i9j0k1l2 \
  -H "Authorization: Bearer sk_live_your_secret_key"

✅ Success Response

{
  "success": true,
  "data": {
    "id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
    "status": "completed",
    "title": "Service Agreement",
    "message": "Please sign this agreement.",
    "signers": [
      {
        "name": "John Doe",
        "email": "[email protected]",
        "order": 1,
        "status": "signed",
        "signed_at": "2024-01-16T14:22:00Z",
        "signature_hash": "a1b2c3d4e5f6..."
      },
      {
        "name": "Jane Smith",
        "email": "[email protected]",
        "order": 2,
        "status": "signed",
        "signed_at": "2024-01-17T09:15:00Z",
        "signature_hash": "f6e5d4c3b2a1..."
      }
    ],
    "external_id": "contract-2024-001",
    "metadata": {"department": "sales"},
    "created_at": "2024-01-15T10:30:00Z",
    "expires_at": "2024-01-29T10:30:00Z",
    "completed_at": "2024-01-17T09:15:00Z",
    "download_url": "/api/v1/signature-requests/sr_a1b2c3.../download",
    "certificate_url": "/api/v1/signature-requests/sr_a1b2c3.../certificate"
  }
}

Download Signed PDF

Download the signed PDF document (only available for completed requests).

GET https://pdf-ninja.io/api/v1/signature-requests/{id}/download
curl https://pdf-ninja.io/api/v1/signature-requests/sr_a1b2c3.../download \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -o signed_document.pdf
<?php
$apiKey = 'sk_live_your_secret_key';
$requestId = 'sr_a1b2c3d4e5f6g7h8i9j0k1l2';

$ch = curl_init("https://pdf-ninja.io/api/v1/signature-requests/{$requestId}/download");
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer ' . $apiKey
    ]
]);

$pdfContent = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if ($httpCode === 200) {
    file_put_contents('signed_contract.pdf', $pdfContent);
    echo "Downloaded signed document!";
}
?>

Download Certificate

Download the signature certificate (HTML) with audit trail and signature hashes.

GET https://pdf-ninja.io/api/v1/signature-requests/{id}/certificate
curl https://pdf-ninja.io/api/v1/signature-requests/sr_a1b2c3.../certificate \
  -H "Authorization: Bearer sk_live_your_secret_key" \
  -o signature_certificate.html

Cancel Signature Request

Cancel a pending or in-progress signature request. Cannot cancel completed requests.

POST https://pdf-ninja.io/api/v1/signature-requests/{id}/cancel
curl -X POST https://pdf-ninja.io/api/v1/signature-requests/sr_a1b2c3.../cancel \
  -H "Authorization: Bearer sk_live_your_secret_key"

✅ Success Response

{
  "success": true,
  "data": {
    "id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
    "status": "cancelled",
    "cancelled_at": "2024-01-18T11:00:00Z"
  }
}

Send Reminder

Send email reminders to all signers who haven't signed yet.

POST https://pdf-ninja.io/api/v1/signature-requests/{id}/remind
curl -X POST https://pdf-ninja.io/api/v1/signature-requests/sr_a1b2c3.../remind \
  -H "Authorization: Bearer sk_live_your_secret_key"

✅ Success Response

{
  "success": true,
  "data": {
    "id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
    "reminders_sent": 1,
    "reminded_emails": ["[email protected]"]
  }
}

E-Signature Webhooks

Receive real-time notifications when signature events occur.

Available Events

signature_request.created Signature request was created
signature_request.signed A signer completed their signature
signature_request.completed All signers have signed
signature_request.cancelled Request was cancelled
signature_request.expired Request expired without completion

📩 Webhook Payload Example

POST /your-webhook-endpoint HTTP/1.1
Content-Type: application/json
X-PDF-Ninja-Event: signature_request.completed
X-PDF-Ninja-Signature: sha256=abc123...

{
  "event": "signature_request.completed",
  "signature_request_id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
  "data": {
    "id": "sr_a1b2c3d4e5f6g7h8i9j0k1l2",
    "title": "Service Agreement",
    "status": "completed",
    "external_id": "contract-2024-001",
    "metadata": {"department": "sales"},
    "completed_at": "2024-01-17T09:15:00Z"
  },
  "timestamp": "2024-01-17T09:15:00Z"
}

🔔 Webhooks

Ontvang meldingen wanneer asynchrone taken voltooid zijn. Voeg webhook_url toe aan elk verzoek om asynchrone modus in te schakelen.

Webhook Tags

Use tags to route events to specific webhooks. This is useful when you have multiple workflows (e.g., contracts, offers, HR documents) and want different endpoints to handle different types of signature requests.

How it works:
  1. Create webhooks with tags: When creating a webhook via API or dashboard, assign a tag like "contracts" or "hr"
  2. Specify tag when creating signature requests: Add webhook_tag: "contracts" to your signature request
  3. Events are filtered: Only webhooks with matching tag receive the events
// Creating a webhook with tag
POST /api/v1/webhooks
{
  "url": "https://your-server.com/contracts-webhook",
  "events": ["signature_request.completed"],
  "tag": "contracts"
}

// Creating a signature request that targets this webhook
POST /api/v1/signature-requests
{
  "title": "Service Agreement",
  "webhook_tag": "contracts",  // Only webhooks with tag="contracts" will receive events
  "signers": [...]
}

Webhook Payload

Wanneer een taak voltooid is, sturen we een POST-verzoek naar uw webhook URL met de volgende payload:

📩 Webhook Verzoek

POST /your-webhook-endpoint HTTP/1.1
Host: your-server.com
Content-Type: application/json
X-PDF-Ninja-Event: pdf.compress.completed
X-PDF-Ninja-Job-ID: job_abc123
X-PDF-Ninja-Signature: sha256=abc123...

{
  "event": "pdf.compress.completed",
  "job_id": "job_abc123",
  "data": {
    "pdf_base64": "JVBERi0...",
    "original_size": 5000000,
    "compressed_size": 2500000,
    "savings_percent": 50.0
  },
  "timestamp": "2025-01-05T12:00:00Z"
}

Webhooks Verifiëren

Als u een webhook_secret opgeeft, ondertekenen we de payload met HMAC-SHA256. Verifieer de handtekening om authenticiteit te waarborgen:

<?php
$webhookSecret = 'your_webhook_secret';
$payload = file_get_contents('php://input');
$signature = $_SERVER['HTTP_X_PDF_NINJA_SIGNATURE'] ?? '';

// Extract hash from "sha256=xxx" format
$expectedSignature = 'sha256=' . hash_hmac('sha256', $payload, $webhookSecret);

if (hash_equals($expectedSignature, $signature)) {
    $data = json_decode($payload, true);
    // Process the webhook
    echo "Valid webhook received!";
} else {
    http_response_code(401);
    echo "Invalid signature";
}
?>
import hmac
import hashlib
from flask import Flask, request

app = Flask(__name__)
WEBHOOK_SECRET = 'your_webhook_secret'

@app.route('/webhook', methods=['POST'])
def handle_webhook():
    payload = request.data
    signature = request.headers.get('X-PDF-Ninja-Signature', '')

    expected = 'sha256=' + hmac.new(
        WEBHOOK_SECRET.encode(),
        payload,
        hashlib.sha256
    ).hexdigest()

    if hmac.compare_digest(expected, signature):
        data = request.json
        print(f"Received: {data['event']}")
        return 'OK', 200
    else:
        return 'Invalid signature', 401
PDF-Ninja voor Gmail - Chrome Extensie

Open PDF bijlagen vanuit Gmail direct in PDF-Ninja. Bewerk, onderteken en converteer je PDF's direct!

Installeer Gratis Extensie

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