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eSign PDF for Free

Sign PDF documents online in just a few clicks. No account creation or installation required.Need eSign for your team? Contact us.

  • E-sign PDFs on Mac, Windows, iOS, Android, and Linux
  • PDF signer trusted by over 1 billion people since 2013
  • ISO/IEC 27001 certification and Swiss security included

Meet Sign.com—Smallpdf’s Dedicated E-Signing Platform

Get PDF documents signed in seconds with Sign.com—featuring strong security, better signature verifiability, and a more professional experience for you and your signees.

Try Sign.com
Sign.com e-signing platform showing a signed PDF document

Sign PDFs Online—No Installation Needed

Need to e-sign a document? Add a signature to a PDF in seconds, then download your signed file. Quick, secure, and hassle-free.

Sign PDFs in Seconds

Sign documents online and download the signed PDFs instantly, even if you don’t have a Smallpdf account.

Adding an electronic signature to a PDF and downloading it in seconds

Encrypted & Secure PDF Signer

Your PDFs are TLS-encrypted, and all files are automatically deleted after one hour unless you save them to your Smallpdf account.

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PDF secured with TLS encryption during eSigning

E-Sign More Than PDFs

Upload Word, Excel, PowerPoint, or image files—our tool converts them automatically to PDFs so that you can sign documents securely and effortlessly, regardless of their original format.

E-signing PDF, Word, Excel, PowerPoint and image files
Signing a PDF document online with a drawn signature

How to Sign a PDF Document Online

  1. Import or drag and drop your file into the PDF signer.
  2. Add your signature, initials, text, and dates as needed.
  3. Click ‘Finish & Sign’ to apply your changes.
  4. Download or share your signed PDF.

Sign Documents Online—Fast & Secure

  • Instant PDF eSigning in a few clicks

    Instant E-Signing, No Delays

    Upload your PDF, add your signature or initials, and finalize the signed PDF in just a few clicks. Intuitive signing done in seconds.

  • ISO/IEC 27001 certified secure PDF signing

    ISO/IEC 27001 Certified Security

    Smallpdf is ISO/IEC 27001 certified and audited annually. Rest assured your document is in good hands when you’re adding a signature to it.

  • Multiple eSignature options: draw, type or check a box

    Multiple Document Signing Options

    Draw, type, or upload your signature for a personalized and professional e-signing experience. Add your signature, initials, date, text, or checkboxes as needed.

  • Cloud-based PDF eSigning accessible on any device

    Cloud-Based PDF Signer

    Sign PDFs from your browser on Mac, Windows, Linux, iOS, or Android. No installation or account creation needed.

  • GDPR-compliant electronic signature tool

    GDPR Compliance

    Smallpdf is GDPR-compliant, which means we’re transparent about how we collect, store, and process your personal data.

  • Advanced PDF e-signing features with Sign.com

    Need More? Try Sign.com

    Sign.com comes with advanced e-signing features designed specifically for business owners, freelance professionals, and anyone who wants to up their e-signing game.

Questions About eSign?

  • Can I digitally sign Word documents?

    Our eSign tool can process multiple document formats, not only PDF. You can add a signature to Word documents, Excel sheets, PowerPoint documents, or various image files.

  • Is it safe to use Smallpdf eSign?

    Totally! Smallpdf and its tools are ISO/IEC 27001-certified and GDPR-compliant. Our PDF signer uses advanced TLS encryption, ensuring all your file transfers are secure.

  • Can I try eSign for Free?

    Of course! With Smallpdf, you can add signatures to PDFs for free. If you love it, a Pro account gives you unlimited access to eSign and 40 other PDF tools that’ll change the way you get work done.

  • How can I request e-signatures from others?

    To invite signees and get their legally binding e-signatures, try our e-signing product, Sign.com. You’ll get advanced features like audit trails, access codes to protect your documents, Certificates of Completion, and more.

  • Can I sign documents on mobile?

    Yes. Simply download our mobile app (available for Android and iOS) and start signing. You can also sign PDFs online in your mobile browser.

  • Does Smallpdf integrate with cloud services?

    Smallpdf integrates with Google Workspace, Microsoft OneDrive, and Dropbox. You can connect either cloud service to sign documents stored there and upload the signed PDFs back to the cloud service.

  • What’s the difference between an electronic and a digital signature?

    An electronic signature is any electronic method that shows a person’s intent to sign a document—for example, typing your name, pasting an image of your signature, or clicking “I accept.” It’s a broad term covering all forms of electronic agreement. A digital signature, on the other hand, is a specific type of electronic signature that uses encryption and digital certificates to prove the signee’s identity and secure the document. Digital signatures add a layer of security and authenticity by creating a unique, tamper-evident fingerprint for each signed document.

  • Is there a way to protect my signed document with a password?

    Absolutely. Once you’ve added a signature to your PDF, head over to our free Protect PDF tool and set a password for your signed PDF.

  • How long are my files stored after signing?

    We delete the processed files from our servers after one hour. However, you can save the signed documents to your Smallpdf account and keep them for as long as you need.

  • What’s the difference between eSign and Sign.com?

    Both eSign and Sign.com are built by Smallpdf. eSign lets you quickly add your own signature to documents. Sign.com offers advanced features such as requesting signatures from others, tracking document activity, adding digital seals, and providing a Certificate of Completion—ideal for professional use when signing serious or sensitive documents.

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E-Signing—Made Simple

Equip your business with tools to e-sign, edit, request signatures, and share documents—all in one place.

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