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LaTeX vs. HTML-to-PDF: Which Should You Use?

Puppeteer, wkhtmltopdf, WeasyPrint, Prince — or LaTeX? A practical comparison of PDF generation approaches by use case, quality, and complexity.

Apr 4, 2026·5 min read·

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When building a feature that generates PDFs, developers face two main approaches: render HTML and print it to PDF, or use a typesetting system like LaTeX. Both have legitimate use cases. The wrong choice leads to months of fighting with layout issues, font rendering inconsistencies, and page break problems. Here is how to pick correctly.

HTML-to-PDF Tools#

The HTML-to-PDF category includes several mature tools:

• Puppeteer/Playwright — headless Chromium, CSS-based layout
• wkhtmltopdf — WebKit rendering engine (now unmaintained)
• WeasyPrint — Python, CSS Paged Media spec
• Prince — commercial, best CSS Paged Media support
• PDFKit — JavaScript, programmatic PDF construction
• ReportLab — Python, programmatic PDF construction

Each renders HTML+CSS to PDF. The quality varies, but they share the same fundamental approach: use browser layout for fixed-page output.

LaTeX Strengths#

LaTeX was designed specifically for print output. It does things HTML-to-PDF tools cannot:

Global Paragraph Optimization#

LaTeX optimizes line breaks across entire paragraphs simultaneously using the Knuth-Plass algorithm. HTML-to-PDF tools break lines greedily, producing uneven spacing and awkward hyphenation in justified text.

Math Typesetting#

LaTeX math mode is the global standard for scientific notation. HTML tools render math via MathJax or KaTeX (JavaScript engines) that produce acceptable but visually distinct results from LaTeX. For academic or scientific documents, only LaTeX is acceptable.

Multi-Page Table Handling#

Complex tables that span multiple pages are handled correctly by LaTeX packages (longtable, supertabular). HTML-to-PDF tools frequently break tables awkwardly across pages or require CSS hacks.

Typography Control#

Microtypography (character protrusion, font expansion), optical margin alignment, and precise kerning are available in LaTeX. HTML-to-PDF tools offer limited control beyond what CSS provides.

Quality Comparison#

Use Case Matrix#

When HTML-to-PDF Wins#

HTML-to-PDF is the right choice when:

• Your designers already produce HTML/CSS mockups and you need to match them exactly
• The documents are marketing material where pixel-perfect design matters more than typography
• Your team has no LaTeX expertise and the learning curve is not justified
• Documents are simple (1–2 pages, minimal tables, no math)
• You need to render dynamic JavaScript content (charts, interactive elements)
• Speed is critical and LaTeX's compilation time is a problem

// Simple Puppeteer invoice — great for basic use cases
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent(invoiceHtml);
const pdf = await page.pdf({ format: "A4" });
await browser.close();

When LaTeX Wins#

LaTeX is the right choice when:

• Documents contain mathematical equations (required, not optional)
• Typography quality is non-negotiable (academic, legal, medical)
• Documents are long (20+ pages) with cross-references, ToC, or bibliography
• You need consistent output across platforms and over time
• Certificates, diplomas, or awards that people print and frame
• Publisher or journal requirements mandate LaTeX

# LaTeX API call — same quality as academic publishers
curl -X POST https://api.formatex.io/api/v1/compile \
  -H "X-API-Key: $FORMATEX_KEY" \
  -H "Content-Type: application/json" \
  -d '{"content":"...","engine":"pdflatex"}' \
  --output document.pdf

The Hybrid Approach#

For applications that need both:

• Use Puppeteer for marketing PDFs, simple receipts, and design-driven documents
• Use FormaTeX for technical reports, math content, certificates, and anything that needs print-quality typography

Both can live in the same codebase:

async function generatePdf(type: "invoice" | "report", data: unknown): Promise<Buffer> {
  if (type === "invoice") {
    // Simple HTML invoice — fast, design-controlled
    return generateHtmlPdf(renderInvoiceHtml(data));
  } else {
    // Technical report — LaTeX quality
    return generateLatexPdf(renderReportLatex(data));
  }
}

Get Started with FormaTeX#

• Sign up for free — 15 compilations/month, no card required
• API documentation — complete endpoint reference, including Smart Compile for AI-powered error fixing
• Getting started guide — your first compilation in minutes

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