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rishabhdugar

Generate PDF from HTML

by Rishabh Dugar · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ Security Clean
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Install in OpenClaw
/install generate-pdf
Description
Generate a PDF document from HTML content or a public URL. Supports custom page sizes, fonts, margins, viewport dimensions, dynamic parameter substitution, a...
README (SKILL.md)

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

Parameter Description
output_format url (default), base64, file/pdf/binary
paper_size A4, A3, A5, Letter, Legal, Tabloid
landscape true for landscape orientation
margin Object with top, right, bottom, left (e.g. "10mm")
font Google Font names, pipe-separated
dynamic_params Key-value object for {{placeholder}} replacement
wait_till Seconds to wait before rendering (for JS-heavy pages)

Example Usage

curl -X POST https://pdfapihub.com/api/v1/generatePdf \
  -H "CLIENT-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "html_content": "\x3Chtml>\x3Cbody>\x3Ch1>Invoice #{{invoice_id}}\x3C/h1>\x3Cp>Total: {{total}}\x3C/p>\x3C/body>\x3C/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
Usage Guidance
This skill forwards your HTML or a public URL to a third‑party service (pdfapihub.com) and requires an API key. Before installing, confirm you trust that service and its privacy/retention policy (the docs mention files are deleted after 30 days). Do not send sensitive secrets or personal data in HTML_content or dynamic_params unless you accept third‑party processing. Also check pricing, page limits, and whether you prefer a local renderer (headless Chromium) if you need to keep data on‑prem.
Capability Analysis
Type: OpenClaw Skill Name: generate-pdf Version: 1.0.0 The 'generate-pdf' skill is a standard integration for the PDFApiHub service (pdfapihub.com), allowing users to convert HTML or URLs into PDF documents. The code and documentation in SKILL.md and skill.json accurately reflect this purpose without any signs of malicious intent, data exfiltration, or prompt injection. It uses a standard API key authentication mechanism and provides clear, legitimate parameters for document customization.
Capability Tags
requires-sensitive-credentials
Capability Assessment
Purpose & Capability
Name/description match the actual behavior: SKILL.md and skill.json both describe sending HTML or a public URL to pdfapihub.com for rendering. The required functionality (an external PDF API and an API key) is appropriate for the stated purpose.
Instruction Scope
Runtime instructions are narrowly scoped: they describe forming an HTTP POST to https://pdfapihub.com/api/v1/generatePdf with either html_content or url and an API key in the CLIENT-API-KEY header. The instructions do not ask the agent to read unrelated files, system config, or other environment variables.
Install Mechanism
No install spec or code is included (instruction-only). Nothing will be downloaded or written to disk by the skill itself, which lowers risk.
Credentials
The only auth artifact required by the skill is an API key for the external service (passed in the CLIENT-API-KEY header, and declared as apiKey in skill.json). The skill does not request unrelated secrets, environment variables, or config paths.
Persistence & Privilege
The skill is not marked always:true and does not request system-wide privileges or modify other skills. Autonomous invocation is allowed (default) but that is expected for skills of this type.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install generate-pdf
  3. After installation, invoke the skill by name or use /generate-pdf
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release of generate-pdf skill: - Generate PDF documents from either raw HTML content or public URLs. - Supports custom page sizes, fonts, margins, and viewport options. - Offers multiple output formats: downloadable URL, base64, or raw PDF. - Allows dynamic parameter substitution for template rendering. - Includes features for invoicing, reporting, certification, and more.
Metadata
Slug generate-pdf
Version 1.0.0
License MIT-0
All-time Installs 1
Active Installs 1
Total Versions 1
Frequently Asked Questions

What is Generate PDF from HTML?

Generate a PDF document from HTML content or a public URL. Supports custom page sizes, fonts, margins, viewport dimensions, dynamic parameter substitution, a... It is an AI Agent Skill for Claude Code / OpenClaw, with 75 downloads so far.

How do I install Generate PDF from HTML?

Run "/install generate-pdf" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Generate PDF from HTML free?

Yes, Generate PDF from HTML is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does Generate PDF from HTML support?

Generate PDF from HTML is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Generate PDF from HTML?

It is built and maintained by Rishabh Dugar (@rishabhdugar); the current version is v1.0.0.

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