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About MyDigitSign

Built by developers who got tired of paying for something that should be free.

Why We Built This

It started with a freelance contract. We needed to sign a PDF quickly — without uploading it to a stranger’s server, without creating yet another account, and without paying a monthly fee just to add a signature image to a document.

Most tools asked us to upload sensitive documents to their cloud. Others wanted a credit card for “free” plans. Some worked, but left watermarks. That felt wrong for something as simple and personal as a signature.

So we built MyDigitSign — a tool that does one thing really well: lets you sign PDFs and documents completely inside your browser, with zero uploads, zero accounts, and zero cost.

What Makes Us Different

The core idea is simple: your documents never leave your device. When you open a PDF in MyDigitSign, it’s read by your browser locally using Mozilla’s PDF.js — the same engine that powers Firefox. Your signature is drawn or typed in memory, placed on the document using pdf-lib, and the signed PDF is downloaded directly to you. Nothing passes through our servers, because we don’t have document servers.

  • ✅ 100% client-side — no server uploads, ever
  • ✅ No account or registration required
  • ✅ No watermarks, no paywalls, no subscriptions
  • ✅ Supports PDF, PNG, and JPG documents
  • ✅ Draw, type, or upload your signature
  • ✅ Works on desktop, tablet, and mobile
  • ✅ Certificate-based cryptographic signing (.pfx / .p12)

Are Electronic Signatures Legal?

Yes — and we wrote a full guide on it: Are Electronic Signatures Legally Binding? →

Short answer: Electronic signatures created with MyDigitSign are legally valid under the ESIGN Act (USA), UETA, and eIDAS (EU) for the vast majority of commercial, personal, and financial agreements.

Who Built MyDigitSign

MyDigitSign was built and is maintained by Ali Mirza, a developer based in Pakistan with a background in building web tools and software products. The project started as a personal tool and grew into a free public service used by thousands of people every month.

We believe privacy-first software should be the default, not the premium tier. That belief drives every decision we make — from how the tool works to what data we never collect.

Our Tools

Our Guides

We write practical guides on digital signatures, document security, and e-signature legality. You can find all our articles on the Digital Signature Blog →

Get in Touch

Have a question, found a bug, or want to suggest a feature? We’d love to hear from you.