Draw or type your signature, place it on the page, download. The file never leaves this tab — and unlike "free" e-sign sites, the original text layer is preserved byte for byte.
Think about what's actually in the PDF you "sign online": your full legal name, your address, what you earn, what you owe, who you're doing business with. Upload-based e-sign tools receive all of it, store it on their servers, and ask you to trust a retention policy you've never read.
BlackoutPDF signs the document inside your browser tab. There is no server copy to breach, no "processed file" to delete, no signature image saved in someone else's database, ready to be reused.
And the export is lossless: your signature is stamped into the original PDF with its text layer intact. The document stays searchable, selectable, and exactly as your counterparty sent it — plus your ink.
Free for small jobs · $19/year unlocks everything — Auto-Redact, the signature library, batch processing, Bates stamping, every tool, unlimited, on all your devices. Team is $99/year for your whole team. 30-day refund, no questions.
In most jurisdictions, yes — laws like the U.S. ESIGN Act and the EU's eIDAS regulation recognize simple electronic signatures (a drawn or typed mark placed with intent to sign) for most everyday agreements. Some documents — wills, certain notarized filings — have stricter requirements, and some workflows need certificate-based audit trails. This is general information, not legal advice: if the stakes are high, ask a lawyer.
Because a contract is concentrated sensitive data — identity, money, terms — and an upload creates a copy outside your control. Every server copy is a thing that can be breached, subpoenaed, retained "for quality purposes," or quietly kept past the deletion date. Here there's nothing to retain: the file is opened in your browser's memory and never transmitted. Turn off your Wi-Fi after the page loads — signing still works.
Yes. Signing here is lossless: we load your original PDF bytes and stamp the signature image onto the page — the text layer, links, and form structure are untouched, so the document stays searchable and selectable. (Our Redact tool is the deliberate opposite: it flattens pages to pixels so removed content can't be recovered. Different jobs, different physics.)
The free tier signs documents up to 3 pages, forever. Pro — $19 a year — unlocks everything: unlimited pages, files and documents across all five BLACKOUT//PDF tools, plus the signature library here, Auto-Redact, batch compress & convert, and Bates stamping, on every device you own. A full year costs less than one month of Acrobat Pro, with nothing held back. Team — $99 a year — covers your whole team with one license key, commercial-use rights, and priority support. Prefer not to subscribe? A one-time $49 Pro Lifetime license unlocks everything forever — no recurring charge. No account either way — your license key is your receipt.
In your browser's local storage, on your device — saved as a small transparent PNG. It is never uploaded, never synced, never seen by us; there's no signature image sitting in someone else's database. Pro lets you keep up to five saved signatures and stamp them onto any contract in two clicks instead of redrawing. Clear your browser data and they're gone — which is exactly the point.
Where your browser supports the new WebMCP standard (navigator.modelContext — Chrome and Edge today), an AI agent can operate this page for you — check what's loaded and export the signed PDF — by calling the same in-tab actions the buttons do. You still create and place the signature yourself, and the file never leaves the tab. On browsers without WebMCP the feature simply isn't there. We'll never offer an "agent API" that uploads your contract; that would defeat the point.
Save up to 5 signatures and reuse them on any contract — no redrawing. A Pro tool, stored only in this browser.
Drawn locally. Your signature never leaves this tab — not even to us.
Stamped in plain monospace — edit it however your contract wants it.
The free tier signs documents up to 3 pages.
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