SignBack: Sign PDF Documents

Stop printing. Stop scanning. Stop paying to sign your own name.

Someone emails you a contract. You know the drill: print it, sign it, scan it, attach it, apologize for the delay. Or worse, pay a monthly subscription just to type your name on a PDF. SignBack ends all that. Open any document, sign it, and send it back...in under a minute, completely free, without your document ever leaving your phone.

KEY FEATURES

100% FREE ACCESS • Every feature unlocked. No subscriptions, no trials, no watermarks, no "3 documents per month" limits, no account required.

SECURE & PRIVATE LOCAL PROCESSING • Everything happens on your device. Documents are never uploaded to a server, so your contracts, leases, and forms stay yours. Perfect for sensitive paperwork.

IDENTITIES FOR EVERY SIGNING ROLE • Create multiple identities and switch easily between them. Whether personal, work, LLC manager, trustee, property manager, or agent, each one auto-fills the right signature block for the role.

SMART BUILT-IN FAST FILL ASSISTANT • SignBack recognizes contracts and forms the moment they open, highlights every blank whether signature lines, printed names, dates, initials, emails, addresses. And fills each one with a tap. Drag highlights to adjust, dismiss the ones you don't need.

MULTI-FORMAT SUPPORT • Open PDFs, Word documents (.docx, .doc), plain and rich text, Pages files, photos, and scans. Everything converts to a clean PDF on-device, automatically.

SIGN & SEND BACK IN ONE TAP • Draw or type your signature once, reuse it forever. When you're done, the Send Back button flattens everything into a polished PDF and opens the share sheet: Mail, Messages, AirDrop, done.

BUILT FOR REAL PAPERWORK • Scan paper documents with your camera • Save reusable templates for forms you fill often • Bundle multi-signer documents into SignBack Packets with clear Signer 1 / Signer 2 roles • Organize everything in folders • Share-sheet extension, home-screen widget, and Siri Shortcuts for instant access

The next time someone says "just sign this and send it back," do exactly that. Download SignBack now. Free and private by design.