How to Sign a PDF on a Chromebook (Free, In-Browser)

A permission slip, a consent form, or an agreement arrives as a PDF on your Chromebook and needs your signature. Chromebooks do not run desktop PDF editors the way Windows or Mac do, and the built-in Chrome PDF viewer cannot sign anything. The good news: signing a PDF on a Chromebook is one of the easiest PDF jobs out there, because everything happens in the browser you already have open.

Here is how to sign a PDF on a Chromebook for free, with no apps to install and no account to create.

Why the built-in viewer is not enough

• Chrome’s PDF viewer opens and reads documents but has no signing tool
• ChromeOS ships without a bundled PDF editor that adds signatures
• Shopping the Play Store for a PDF app usually lands on a subscription or a watermark

Sign a PDF on your Chromebook in Chrome

1. 1Open the Sign PDF tool in the Chrome browser on your Chromebook.
2. 2Click to choose a file and pick your PDF from the Files app, Google Drive, or your Downloads folder.
3. 3Choose how to sign — draw with your trackpad, touchscreen, or a connected mouse; type your name in a script font; or upload a saved image of your signature.
4. 4Drag the signature onto the signature line and size it to fit.
5. 5Download the signed PDF to your Downloads folder and send it back.

If the PDF has fillable fields — checkboxes, dropdowns, text boxes — fill those in the same pass before adding your signature, so the whole form is complete in one download.

Is a Chromebook signature legally binding?

Yes — electronic signatures carry the same legal weight as handwritten ones under laws like the US ESIGN Act and UETA, as long as you sign with intent. For everyday agreements, consent forms, and approvals, an electronic signature drawn in a browser tool is valid. If a specific document genuinely requires a handwritten signature or a notary, the other party will tell you; sign on paper in that case.

Build a signature you can reuse

Rather than redrawing your signature for every form, upload a clear photo of your signature once and reuse it whenever a new PDF needs signing. Straighten and crop the photo before uploading so the background is clean and the pen strokes are dark.

Signing forms that were scanned

If the PDF is a scanned page, you sign it the same way — the signature is placed as an image on top of the page and saved into the file. Just position it carefully on the line, because there is no form field to snap it into place.