CONVERT HTML → PDF (HTML to PDF)
Convert HTML web pages to PDF documents for offline reading and archival.
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Ghostscript + QPDFHOW TO CONVERT HTML → PDF
Upload the HTML
Drop in a standalone .html file, or drop a ZIP containing HTML plus its CSS and images.
Render with headless Chromium
The page is loaded in a real browser engine, web fonts resolved, layout computed.
Download the PDF
A paginated PDF with selectable text and working links is produced.
Converting HTML to PDF snapshots a web page or standalone HTML file into a paginated, printable PDF document. Our converter uses a headless Chromium render so every CSS rule — flexbox, grid, web fonts, custom properties — is honoured exactly as a browser would display it. The result is a pixel-accurate PDF ready for archival, legal evidence, invoicing, or offline reading.
Why convert HTML to PDF
HTML is designed for the infinite-canvas web; PDF is designed for fixed-page output. Converting once gives you a frozen, shareable artefact that renders identically on every device, embeds in email or legal filings without JavaScript or network dependencies, and carries your exact rendering intent into the future.
HTML vs PDF — Technical specifications
Side-by-side comparison of the technical details.
HTML
- MIME type
- text/html
- Extensions
- .html, .htm
- Standard
- HTML Living Standard (WHATWG)
- Character encoding
- UTF-8 (recommended)
- Element count
- ~110 in current spec
- MIME Type
- text/html
- Extension
- .html
- Category
- Documents & Text
- Full Name
- HTML Document
- Conversion Engine
- LIBREOFFICE
- MIME type
- application/pdf
- MIME Type
- application/pdf
- Extension
- Category
- Documents & Text
- Full Name
- PDF Document
- Conversion Engine
- LIBREOFFICE
- Current version
- PDF 2.0 (ISO 32000-2:2020)
- Compression
- Flate, LZW, JBIG2, JPEG, JPEG 2000
- Max file size
- ~10 GB (practical); 2^31 bytes (theoretical per object)
- Color models
- RGB, CMYK, Grayscale, Lab, DeviceN, ICC-based
- Standard subsets
- PDF/A, PDF/X, PDF/UA, PDF/E, PDF/VT
| Specification | HTML | |
|---|---|---|
| MIME type | text/html | application/pdf |
| Extensions | .html, .htm | — |
| Standard | HTML Living Standard (WHATWG) | — |
| Character encoding | UTF-8 (recommended) | — |
| Element count | ~110 in current spec | — |
| MIME Type | text/html | application/pdf |
| Extension | .html | |
| Category | Documents & Text | Documents & Text |
| Full Name | HTML Document | PDF Document |
| Conversion Engine | LIBREOFFICE | LIBREOFFICE |
| Current version | — | PDF 2.0 (ISO 32000-2:2020) |
| Compression | — | Flate, LZW, JBIG2, JPEG, JPEG 2000 |
| Max file size | — | ~10 GB (practical); 2^31 bytes (theoretical per object) |
| Color models | — | RGB, CMYK, Grayscale, Lab, DeviceN, ICC-based |
| Standard subsets | — | PDF/A, PDF/X, PDF/UA, PDF/E, PDF/VT |
HTML vs PDF — Strengths and limitations
What each format does best, and where it falls short.
HTML Strengths
- Universal — every browser, OS, email client, and document reader displays HTML.
- Plain text, human-readable, grep-able, and diffable in git.
- Flexible — pages render even with broken or partial markup (error-tolerant parser).
- Carries structure, styling (CSS), and behavior (JavaScript) in one file.
- Accessibility-friendly when written with semantic tags and ARIA attributes.
Limitations
- Error tolerance allows sloppy markup to hide real bugs.
- Rendering depends on browser engine — pixel-perfect cross-browser output is an art form.
- Security-sensitive — unsafe HTML can execute scripts or leak data (XSS vulnerabilities).
PDF Strengths
- Pixel-perfect fidelity across operating systems, browsers, and printers.
- Embeds fonts, so documents render identically without the reader having them installed.
- Supports digital signatures, encryption, and redaction for legal workflows.
- ISO-standardized (ISO 32000) with multiple validated subsets (PDF/A, PDF/X, PDF/UA).
- Supports both vector and raster content, keeping line art crisp at any zoom level.
Limitations
- Editing is difficult — the format is optimized for display, not mutation.
- Text extraction can scramble reading order in multi-column layouts.
- File sizes balloon quickly when embedding high-resolution images or fonts.
Quality & Compatibility
Output is pixel-accurate to what a modern Chromium browser would display at the selected paper size. Web fonts referenced via URL are loaded and embedded in the PDF. Interactive elements (forms, JavaScript widgets) become static snapshots at their initial render state.
Tips for Best Results
- Use @media print CSS to hide navigation, ads, and sidebars in the PDF output.
- Set a page-size hint via @page { size: A4 } to avoid odd pagination on long documents.
- For perfectly consistent output, host web fonts on the same server as the HTML — cross-domain loads can fail.
Frequently Asked Questions
Yes, as long as the fonts are standard (system fonts or common office fonts like Arial, Calibri, Times, Helvetica). Custom corporate fonts survive if they are embedded in the source document; otherwise the conversion substitutes the closest available match, which can shift line breaks by a character or two.
They render at their initial state after page load. Interactive post-load states (tooltips, hover menus) are captured only if they are visible at screenshot time.
Yes. Inline images are embedded into the PDF at full resolution, editable tables become native PDF tables, and hyperlinks keep their URLs. Complex features unique to HTML — macros, form fields, track-changes — are mapped where an equivalent exists in PDF and flattened into static content otherwise.
Yes. Pick A4, Letter, Legal, or custom sizes plus portrait/landscape. Our CSS @page rules also let you set margins and orientation per section.
All uploads go over TLS, files are processed in isolated containers and both the source and the output are deleted within two hours. No account is required, file contents are never indexed or used for training, and the paid plan adds a signable data-processing agreement for regulated workflows.
Yes. Referenced web fonts are loaded during render and embedded as subsets in the PDF, so text stays selectable and copy-paste-friendly.
Yes, as long as they are reachable URLs. For a fully offline conversion, upload a ZIP containing the HTML plus all referenced assets.
HTML Document
Source formatHTML is the standard markup language for web pages. As a conversion target or source, it carries text content with structural and formatting information that can be extracted or repurposed.
PDF Document
Target formatPDF is the universal standard for sharing documents with consistent formatting across all devices and operating systems. It preserves fonts, images, and layout exactly as intended by the author.
Common Use Cases
Invoice and receipt generation
SaaS apps render HTML invoices and save them as PDF for email delivery and archival.
Legal evidence preservation
Screenshotting a full web page as PDF preserves content plus URL and timestamp metadata.
Reporting dashboards
Export-to-PDF buttons on admin dashboards usually render HTML and save it as PDF.
Offline reading
Long articles and blog posts convert to PDF for Kindle sync and plane-mode reading.
HTML vs PDF — Typical file sizes
Approximate file sizes for common scenarios.
- Hello-world page < 1 KB
- Blog post (rendered HTML) 5-40 KB
- Modern SPA (initial HTML shell) 50-200 KB
- 1-page text-only memo 50–150 KB
- 10-page report with images 500 KB – 2 MB
- Scanned document (per page) 100 KB – 1 MB
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Convert thousands of camera RAW files (CR3, NEF, ARW) to WebP, AVIF, or TIFF in one pass.
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Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
PDF/X: The Complete Guide to Print-Ready PDF Standards
Complete guide to PDF/X standards: X-1a vs X-3 vs X-4 differences, required elements, OutputIntent and FOGRA39 profiles, TrimBox/BleedBox page geometry, ink...
Read guide →PDF/A: The ISO Standard for Long-Term Document Archival
Complete guide to PDF/A archival format: PDF/A-1/2/3/4 conformance levels, prohibited features, font embedding requirements, Ghostscript conversion, VeraPDF...
Read guide →HTML Format: The Complete Guide to the Web's Document Language
Complete guide to HTML as a file format: document structure, DOCTYPE, semantic elements, metadata, inline vs external CSS/JS, and converting HTML to PDF...
Read guide →
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