SSublimePDF
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Coming SoonSummer 2026 — join the waitlist→

Free PDF tools and a developer API, done properly.

A complete suite of in-browser PDF tools and a developer API. Built with the polish of a real product team — fast, private, and quietly powerful enough to replace the desktop apps you've outgrown.

Free, no accountFiles never uploadedWorks offline
sublimepdf.com / editor / contract.pdf
Rendered locally in your browser
No files uploaded
Why SublimePDF

The serious PDF tool, without the seriousness tax.

Most PDF tools either charge $240/year and run on Electron, or are free and feel like 1998. We're trying for the third option.

Faster than the desktop apps.

WebAssembly lets us run the same PDF parsers Acrobat ships — directly in your browser, with zero round-trip latency to a server.

In-browserNo upload wait
0Server hops

Built for legal & finance teams.

Files never leave your tab. Signed signature bundles built to meet eIDAS, ESIGN, and UETA electronic-signature standards. Enterprise controls — SSO, audit logs, and EU data residency — available on request.

eIDASCompliant signing
ESIGNUS-recognised

An API your engineers will like.

One POST /v1/html-to-pdf away from a print-quality document. SDKs across the major languages, idempotency keys, signed webhooks.

RESTHTML → PDF
ChromeReal render
The toolkit

Sixteen tools, considered individually.

Every tool was designed as if it were the only thing the app did. No bundled clutter, no gated features, no progress bars to wait through.

Sign and fill, finally without a desktop app.

Drop in a contract, NDA, or form. We'll detect signature blocks and form fields automatically, route them in the right order, and embed signatures as cryptographic objects that pass verification in Acrobat and Preview.

  • Automatic field detection (AcroForm and XFA)
  • Multi-party signing with audit trail
  • eIDAS-, ESIGN-, and UETA-compliant signature bundles
  • Save flat or keep fields editable
Open the signer →
CONTRACT NO. 2026-042Master Services Agreement3. Compensation & PaymentCLIENT SIGNATUREVENDOR SIGNATUREMira Acharya · 09 May 2026Awaiting signaturePending · Will Lin1 of 2 signed
Full directory

Every PDF job, covered.

Sixteen tools across four categories. Every one free, every one private, every one designed to do the smallest right thing well.

Convert

5

Edit & sign

5

Organise

4

Secure

2
Developer API

PDFs that look like print.
Generated from HTML.

Build invoices, statements, certificates, and reports from the same HTML and CSS you already write. We render through real headless Chrome — flexbox, grid, web fonts, SVG, the lot.

RESTJSON in, PDF out
CSS3Flexbox, Grid, fonts
ChromeReal render engine
Read the docs →View pricing
generate-invoice.jsJSPythonRubyGo
​// One POST. One PDF.
const response = await fetch(
  'https://api.sublimepdf.com/v1/html-to-pdf',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer sk_live_…',
      'Idempotency-Key': invoice.id,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      template: 'tmpl_invoice_modern',
      data: {
        company: 'Stillwater & Co.',
        items: [
          { name: 'Brand strategy',   price: 2500 },
          { name: 'Identity design',  price: 3800 },
          { name: 'Web development',  price: 3700 },
        ],
        total: '$10,000.00',
      },
      options: { format: 'A4', margin: '24mm' },
    }),
  }
);

const pdf = await response.blob();
// → PDF blob, ready to stream or store
Side by side

How SublimePDF stacks up against the alternatives.

Honest comparison against the two most common tools we replace. Pulled from each company's pricing page, May 2026.

FeatureSublimePDFFree / ProAdobe Acrobat$239.88/yrSmallpdf$108/yr
All 16 tools freeNo paywall on basic editing, signing, or merging✓×2 / day free
Files never uploadedAll processing happens in your browser✓××
Works offlineFull editor, no network connection required✓Desktop only×
HTML → PDF APIReal Chrome render with full CSS3 support✓××
eIDAS-compliant signingAudit trail, signed bundles, EU-recognised✓✓×
Open source coreAuditable, MIT-licensed processing libraries✓××
No daily task limitsUse every tool as often as you need✓Subscription only×
Pricing

Free, forever. Pro, when you need it.

The free tier covers what 95% of users need. Upgrade only if you need the API, team features, or higher volumes.

Free
$0 / forever

Everything you need for personal PDF work, with no account required and no upload limits.

  • All 16 PDF tools, unlimited use
  • Files never leave your browser
  • Open source processing core
  • Works offline, no account
Browse all tools
Most popularDeveloper
$29 / month

HTML to PDF API with generous limits for growing projects.

  • 1,000 API calls / month
  • HTML to PDF, templates, custom fonts
  • Webhook callbacks & idempotency
  • Email support
Join the waitlist
Business
$99 / month

High-volume API access with premium features and support.

  • 10,000 API calls / month
  • Priority rendering queue
  • Custom templates library
  • Priority support
Contact sales

Be first in line when we launch.

Whatever you need to do to that PDF — there's a tool for it. Free, fast, private, and built by people who care how a document looks.