Generate PDF#

What It Does#

Generates a PDF document from either raw HTML content or a public URL using a headless Chromium browser. The API renders the page and returns the result as a downloadable URL, base64 string, or raw PDF file.

When to Use#

• Convert an HTML template (invoice, report, certificate) into a PDF
• Take a PDF snapshot of a live webpage
• Generate PDFs with dynamic data via placeholder substitution
• Create PDFs with custom fonts, margins, and page sizes

Required Inputs#

You must provide one of:

• html_content — raw HTML string to render
• url — a public URL to convert

Authentication#

Send your API key in the CLIENT-API-KEY header.

Get your free API key at https://pdfapihub.com. Full API documentation is available at https://pdfapihub.com/docs.

Use Cases#

• Invoice Generation — Generate branded PDF invoices from HTML templates with dynamic customer data
• Report Export — Convert dashboard or analytics HTML pages into downloadable PDF reports
• Certificate Creation — Produce personalized certificates or diplomas with dynamic name/date substitution
• Contract Generation — Create contracts from templates with client-specific details filled in
• Resume/CV Export — Convert styled HTML resumes to PDF for download
• Receipt Generation — Auto-generate PDF receipts for e-commerce transactions
• Webpage Archival — Save a snapshot of any public webpage as a PDF for records

Key Options#

ParameterDescriptionoutput_format``url (default), base64, file/ pdf/ binary``paper_sizeA4, A3, A5, Letter, Legal, Tabloidlandscape``true for landscape orientationmarginObject with top, right, bottom, left (e.g. "10mm")fontGoogle Font names, pipe-separateddynamic_paramsKey-value object for {{placeholder}} replacementwait_tillSeconds to wait before rendering (for JS-heavy pages)

Example Usage#

bash

curl -X POST https://pdfapihub.com/api/v1/generatePdf \
  -H "CLIENT-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "html_content": "<html><body><h1>Invoice #{{invoice_id}}</h1><p>Total: {{total}}</p></body></html>",
    "css_content": "body { font-family: Arial; }",
    "dynamic_params": { "invoice_id": "INV-001", "total": "$1,249.00" },
    "paper_size": "A4",
    "output_format": "url"
  }'

Notes#

• Boolean fields accept string values: "true", "1", "yes", "on"
• Files are automatically deleted after 30 days
• Page count limits are tier-dependent