The best way to convert an HTML page to PDF depends on what the page needs: use Puppeteer or Playwright when it relies on browser rendering or JavaScript, and evaluate Prince or WeasyPrint for controlled documents where print layout matters most. There is no established universal winner. Test candidate renderers against representative pages, and isolate any service that processes untrusted HTML or loads untrusted resources.
Choose a renderer for the kind of HTML you have
First decide whether you are printing a live website or generating a document from a controlled template. A live page may depend on JavaScript, login state, and dynamic assets. A template may instead need precise page breaks, page numbering, or running headers and footers.
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| Renderer | Good starting point | What its documentation establishes | Validate before adopting |
|---|---|---|---|
| Puppeteer | Pages that need Chromium rendering and JavaScript execution | Page.pdf() uses print CSS by default. The PDF guide says fonts are awaited by default. | Confirm the page lifecycle, assets, print styles, dimensions, margins, colors, and page breaks. |
| Playwright | Browser automation projects already using Playwright | The Page API documents that page.pdf() returns a PDF buffer and uses print CSS by default; it also documents screen media emulation and page dimensions and margins. | Verify the selected browser and runtime, fonts, assets, and output layout on production-like pages. |
| Prince | Print-oriented documents that need paged-media layout features | Prince’s HTML-to-PDF guide describes conversion through CSS and features such as page numbering and page headers and footers. | Check current licensing and deployment requirements, and test whether its CSS support meets your templates’ needs. |
| WeasyPrint | Python applications generating controlled HTML and CSS documents | The API reference lists PDF hyperlinks, bookmarks, attachments, and forms, and documents limits in HTML and CSS support. | Test your CSS, fonts, assets, and document requirements; pin versions and review changes before upgrades. |
| wkhtmltopdf | Existing deployments being maintained or migrated | The project status page warns against untrusted HTML and suggests alternatives for controlled reports and JavaScript-heavy sites. The page was crawled several years ago, so verify current project status before relying on it. | Assess security exposure, current maintenance, and output differences before continued use or migration. |
These are documented capabilities, not results from an independent head-to-head benchmark. The available sources do not establish a fair ranking for speed, quality, compatibility, cost, or adoption.
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Convert a page with Puppeteer
Puppeteer is a practical starting point when you want Chromium to render a page, including its JavaScript, before producing a PDF. Install it in a Node.js project, then save the following as save-pdf.js:
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const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({ headless: true });
try {
const page = await browser.newPage();
await page.goto('https://example.com', { waitUntil: 'networkidle0' });
await page.pdf({ path: 'page.pdf', format: 'A4', printBackground: true });
} finally {
await browser.close();
}
})();Install and run it with npm install puppeteer followed by node save-pdf.js. Replace the URL with a page you are authorized to access. This example writes an A4 PDF and prints background graphics. Puppeteer’s PDF method uses print CSS by default; the method documentation describes available PDF options and their defaults.
Choose print or screen styling deliberately
With print media as the default, define document-specific rules in @media print, including page breaks and elements that should be hidden. If the intended PDF should resemble the screen instead, emulate screen media before calling page.pdf(); see Puppeteer’s Page.pdf() documentation and PDF guide for the supported approach. Browser printing may alter colors; Puppeteer documents -webkit-print-color-adjust for exact color behavior.
Wait for the content your page actually needs
The example’s networkidle0 condition is a useful starting point, not a guarantee that every page is ready. A page may continue polling or may render important content after its initial network activity. For dynamic sites, wait for a page-specific selector or other signal that indicates the content is ready, and test whether fonts, images, stylesheets, and data have loaded. Puppeteer documents that PDF generation waits for fonts by default, but that does not verify every other asset.
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Convert a page with Playwright
If your project already uses Playwright, its page PDF method can return the PDF as a buffer or write it to a file. This runnable Node.js example creates a Chromium browser, waits for navigation, and writes a PDF:
const { chromium } = require('playwright');
const fs = require('node:fs/promises');
(async () => {
const browser = await chromium.launch();
try {
const page = await browser.newPage();
await page.goto('https://example.com', { waitUntil: 'networkidle' });
const pdf = await page.pdf({ format: 'A4', printBackground: true });
await fs.writeFile('page.pdf', pdf);
} finally {
await browser.close();
}
})();Install the package with npm install playwright. Playwright requires a browser installation for the runtime you use; consult its setup documentation for the appropriate installation command. The Page API documents PDF options, print CSS defaults, screen media emulation, page dimensions, and margins. As with Puppeteer, test readiness and output on your actual pages rather than assuming that navigation completion means every asset is ready.
Prepare and inspect print output
Browser-based PDF generation defaults to print media, so make the document’s print behavior intentional instead of assuming the screen layout will carry over unchanged.
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- Set the desired page size and margins explicitly when the renderer supports them.
- Use print CSS for page breaks, repeated elements, and content that should be omitted from paper output.
- Check background colors and images, since print output may handle colors differently.
- Ensure fonts, images, stylesheets, and page data are ready before conversion.
Review PDFs made from varied, production-like inputs. Check page size, margins, page breaks, fonts, images, long URLs, tables, links, selectable text, metadata, and headers or footers. These are validation checks, not guarantees made by any one renderer.
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Prince for paged-media requirements
Prince is worth evaluating when page numbering or running headers and footers are central to a document. Its user guide describes HTML/XML-to-PDF conversion through CSS and those paged-media features. Verify current licensing and deployment needs directly, then test the CSS and templates your application uses.
WeasyPrint for controlled Python workflows
WeasyPrint’s API reference describes PDF hyperlinks, bookmarks, attachments, and forms. It also documents limits in its HTML and CSS implementation, so test the specific layout rather than assuming compatibility with every browser feature. Pin the version used in production and review its changelog when upgrading. The project’s changelog records WeasyPrint 70.0 as released on 2026-09-08 and describes it as a security update.
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Keep legacy wkhtmltopdf deployments under review
If you maintain wkhtmltopdf, treat the project’s status page warning about untrusted HTML as a security concern. The page also suggests alternatives for controlled reports and JavaScript-heavy sites. Because that status page was crawled several years ago, check its current content before making a maintenance or migration decision.
Protect the renderer from untrusted input
Rendering is security-sensitive when markup, styles, or referenced resources come from users or other untrusted sources. A renderer that processes HTML can also attempt to fetch resources. WeasyPrint’s common use cases documentation and wkhtmltopdf’s status page both publish warnings about untrusted content.
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- Limit filesystem access and run the renderer with only the permissions it needs.
- Sanitize user-controlled HTML and CSS where appropriate.
- Use process or container isolation, keep dependencies patched, and monitor security advisories.
Compare candidates with a repeatable test
Use the same representative pages and acceptance checks for every candidate. Record the renderer and version, runtime, browser if applicable, fonts and assets, and the settings used. Compare the dimensions that matter to your application:
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- Whether JavaScript execution or browser-specific behavior is required.
- Support for print CSS and paged-media features, including dimensions, margins, headers, footers, and page breaks.
- Font and asset loading behavior.
- Required PDF output features, such as links, bookmarks, forms, or archival variants.
- Security controls for untrusted markup and resources.
- Deployment and runtime requirements, maintenance cadence, and verified licensing or cost.
The sources cited here describe some renderer capabilities and security advice, but do not establish comparative pricing or a fair performance and quality benchmark. Measure those against your own workload before choosing.
Troubleshoot common conversion failures
| Symptom | Likely cause | What to check |
|---|---|---|
| PDF looks different from the browser window | The renderer is using print media, or print styles change the layout. | Inspect @media print rules and explicitly emulate screen media only if screen styling is the intended output. |
| Text or images are missing | Fonts, images, stylesheets, or dynamic page data were not ready when capture began. | Wait for a meaningful page-specific readiness signal; verify network access and asset loading. Puppeteer’s default font wait does not establish that all other assets are ready. |
| Colors or backgrounds do not match | Print color behavior differs from screen rendering, or background graphics were not enabled. | Check the PDF options for printing backgrounds and review Puppeteer’s documented -webkit-print-color-adjust guidance for exact color behavior. |
| Content is cut off or awkwardly split | Page dimensions, margins, or print page-break rules do not fit the content. | Set dimensions and margins deliberately, adjust print CSS, and inspect long tables, images, and content near page boundaries. |
| Rendering stalls or behaves inconsistently | A page may have ongoing network activity, delayed rendering, or unavailable external resources. | Use a readiness condition tied to the content needed in the PDF, and check that required assets are reachable in the rendering environment. |
| Unexpected access or security behavior | The renderer may be able to access resources beyond the intended document. | Restrict network and filesystem access, sanitize where appropriate, and isolate the process rather than rendering untrusted input with broad permissions. |
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If you need a screenshot or PDF rather than a local browser-rendering pipeline, ScreenshotNeo provides a website screenshot API and MCP server. Its HTTP API can return a PNG, JPEG, WebP, or PDF from one GET request. For a PDF capture of a page:
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Frequently Asked Questions
Does Puppeteer wait for fonts before generating a PDF?
Puppeteer’s PDF guide says fonts are awaited by default. You should still verify that images, stylesheets, dynamic data, and other assets are ready.
Can browser-based PDF tools use screen CSS instead of print CSS?
Yes. Puppeteer and Playwright document screen media emulation. Their PDF methods otherwise use print CSS by default.
Can I safely convert HTML supplied by users?
Only with appropriate safeguards. Sanitize where appropriate, restrict network and filesystem access, isolate the renderer, and keep it patched.
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