Sign PDF

Place your signature on a PDF by drawing, typing, or uploading an image. The whole process runs in your browser — your signed agreements stay on your device.

Conversions

Signature

Page number

About Sign PDF

Sign PDF lets you place a signature on any page of a PDF by drawing it with mouse or touch, typing your name in a script font, or uploading a scan of your handwritten signature. You can resize and move the signature to the right spot. The signature is placed locally in your browser — rental agreements, NDAs, and freelance contracts are never uploaded to a server. Note that this places a visual signature; it is not a cryptographic, certificate-based digital signature.

Best for

  • Signing rental leases and NDAs without printing them
  • Adding a freelance contract signature before emailing back
  • Counter-signing approval forms on a tablet

Pros

  • +Draw with touch or mouse, type in a script font, or upload a scan
  • +Drag the signature into place and resize on screen
  • +Runs locally — signed contracts never leave your device

Cons

  • −This is a visual signature, not a PKI/cryptographic digital signature
  • −Very large signed PDFs can hit browser memory on low-RAM phones

How to use Sign PDF

  1. 1

    Select or upload the source files from your local device storage.

  2. 2

    Specify conversion settings, options, or target output formats.

  3. 3

    Wait for the client-side browser logic to process the files securely.

  4. 4

    Download the finalized outputs directly to your system.

Frequently Asked Questions

Is the signature legally binding?
chameLeo places a visual signature on the PDF; whether it satisfies your jurisdiction's signature laws is up to your contract and jurisdiction. For high-value or contested agreements, use a cryptographic signature service that issues certificates.
Can multiple people sign the same PDF?
Yes — sign once, save the file, then pass it on. Each signer places their own signature in their own session. The PDF stays on whoever's device is signing at the time, so no copy is uploaded anywhere.
Can I draw my signature on a phone or tablet?
Yes. The drawing surface supports touch and stylus input. You can draw with your finger on iOS or Android, resize, then drop the signature on the relevant line.
Does signing change the PDF's quality or layout?
Signing adds the signature as a small image overlay on the chosen page; text and layout otherwise remain unchanged. File size grows by a few KB per signature.
Are my signed contracts uploaded during signing?
Never. Drawing, image placement, and PDF export all happen in your browser via JavaScript. Your name, signature drawing, and the signed contract never leave your device.

Related tools

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Sign PDF Quality Rating

4.8
25 reviews

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