Assine qualquer PDF em segundos.
Desenhe, digite ou envie sua assinatura, adicione texto em qualquer lugar e baixe o arquivo — tudo no seu navegador. Seu documento nunca sai do seu dispositivo.
Não pedimos seu nome, seu e-mail ou uma conta — nem mesmo para assinar.
Why signing locally is safer
Leases, NDAs, offer letters, invoices, and medical or consent forms are exactly the kind of documents you don't want sitting on someone else's server. PDF Sign Pad signs them the same way it signs anything else: entirely on your own device. Your document and signature are never uploaded, so there's no server copy to leak, get breached, or hand over in a data request — just your document, signed, and downloaded straight back to you.
Common uses
A freelancer signing a client NDA before starting a new project — one file, no account to set up first. A job-seeker signing and returning an offer letter the same day it arrives, from a phone if that's what's handy. A parent filling out and signing a school consent form between errands. A privacy-conscious professional adding a signature to an internal confidential form they'd rather not upload anywhere. Different documents, same job: sign it, download it, done — no account required, and nothing left behind on a server in between.
Perguntas frequentes
Quick answers before you start — the has more.
Algumas respostas abaixo são exibidas somente em inglês — o restante da interface está disponível nos 7 idiomas suportados.
Meu documento é enviado para algum lugar?
Não. Seu PDF e sua assinatura são processados inteiramente no seu dispositivo e nunca saem do seu navegador.
Can I sign a PDF online for free — without creating an account?
Yes. PDF Sign Pad is free to use, with no account, no sign-up, and no email address required — not even to save a signature for later. Open the tool, drop in your PDF, sign it with a drawn, typed, uploaded, or saved signature, and download the finished file. Nothing about your document is uploaded anywhere in the process — everything happens in your browser. See the for exactly how it works.
Essa é uma assinatura juridicamente vinculante?
O PDF Sign Pad cria uma assinatura eletrônica visual simples. Não é uma assinatura digital certificada ou qualificada — consulte nosso Aviso legal.
Does signing create a new PDF, or change my original file?
Signing never touches your original file. PDF Sign Pad only ever works with the copy loaded into your browser's memory — the file already saved on your device or in the cloud is untouched unless you choose to overwrite it yourself. When you click Download, the app "flattens" your signature and any text you've added — permanently baking your marks into the pages — and gives you a brand-new, finished PDF to save wherever you like. See the for more on how this works.
O que acontece com meu documento depois que eu fecho a aba?
Nada é mantido. Seu documento, qualquer texto adicionado e sua assinatura existem apenas na memória do seu navegador durante essa sessão — fechar a aba, atualizar a página ou clicar em "Começar de novo" os libera completamente.
From the blog
Guides on signing, saving, and filling PDFs — written in plain language, and checked against the real product before we publish.
Is a Simple Electronic Signature Legally Binding?
You've just signed a document with a drawn, typed, or uploaded mark — but is it actually binding? A plain-language guide to what makes an electronic signature legally recognized, and the specific situations where a simple e-signature isn't enough.
Is It Safe to Sign a PDF Online? How PDF Sign Pad's No-Upload Design Works
Where does your file actually go when you sign it online? Here's the honest architectural difference between a server-side signer and an in-browser one — and a checklist for judging any tool, including this one.