How to sign a PDF in Google Chrome
Chrome opens PDFs in its own viewer, and on a computer that viewer can do more than display them. Its Draw tool puts a handwritten signature on the page, Add text types into blanks, and Download saves a copy with your changes. It works the same on Windows, Mac and Linux, with no extension to install.
Updated November 5, 2026 · 4 min read
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Sign a PDF with Chrome's built-in viewer
These steps follow Google's current Chrome Help for computers. If your browser is a few versions behind, update Chrome first: the editing tools are newer than the viewer itself.
- 1
Open the PDF in a Chrome tab
Drag the file from your desktop or Downloads folder onto an open Chrome window. If the PDF lives inside a website's own preview, like an email attachment preview, download it first and open the downloaded file, so you're in Chrome's viewer rather than the site's.
- 2
Fill in the blanks
If the form has real fields, click one and type. For a blank line with no field, select Add text, pick a font, style and color in the sidebar, then click where the words belong.
- 3
Draw your signature
Select Draw, then Pen in the right panel. Choose a size and color, zoom in on the signature line, and click and drag to sign. Select Done when it looks right.
- 4
Save the signed copy
Select Download and choose With your changes. Picking the other option saves the untouched original, which is an easy way to send back an unsigned form by mistake.
Make the signature look like yours
Zoom in before you draw, so the pen has more room and each stroke is smoother. A touchscreen laptop or a pen tablet does far better than a mouse. On a narrow window the side panel moves into a compact bar at the bottom of the viewer.
Want the signed PDF in Google Drive instead of your Downloads folder? Select Save to Drive at the top right of the viewer, choose an account, and select Save. The copy lands in a folder called Saved from Chrome. Google notes that this doesn't work in Incognito or a Guest profile.
What a Chrome signature can't do
Chrome's pen paints ink onto the page. That's all a one-off form needs. It runs out of road in a few common situations:
- You sign the same way every week. Google's help doesn't describe a saved signature in the viewer, so plan on drawing it again on each new PDF.
- The other side has to sign. Chrome can't send the PDF to a customer, place a box for them or tell you when they've finished.
- Someone asks for proof. A drawn stroke carries no name, no timestamp and no IP address, so it can't show who added it.
Send it for signature from the same tab
SignMaster is a website, so it runs in Chrome like any other tab. There's no extension and nothing to install, for you or for your signers. Each send is an envelope: one or more documents going to one or more signers.
- 1
Start a new envelope
Sign in at usesignmaster.app, or start free with no card, and click New envelope. Drop the PDF in. A JPG or PNG photo of a page works too, and becomes a PDF.
- 2
Add who signs
On Recipients & order, click Add me if you're signing, then add each other person by name and email. Choose In order so people sign one after another, or All at once.
- 3
Drop in the fields
Click a field in the palette, then click the page, or drag it on: Signature, Initials, Date signed, Text, Checkbox and more, each assigned to one person.
- 4
Set the follow-up and send
On Message & settings, add a note, an optional sign-by date and reminders. On Review & send, click Send for signature. If you're the first signer, click Sign now.
Your signers open the email link in whatever browser they use, Chrome included. They can draw their signature, type it, upload a picture of it or take a photo of it on paper. When the last person finishes, everyone gets the signed PDF with a certificate of completion listing each signer's email, IP address and timestamps.
Questions? Answers.
Can Chrome sign a PDF without an extension?
Yes. On a computer, Chrome's built-in PDF viewer has a Draw tool with a pen and a highlighter, plus Add text for typing on the page. Download the file with your changes to keep the signature.
Why can't I find the Draw button?
Make sure the PDF is open in Chrome's own viewer and not a website's preview, and that Chrome is up to date. In a narrow window, the tools sit in a compact panel at the bottom instead of the right side.
Is a signature drawn in Chrome legally binding?
It can be. The federal ESIGN Act says a signature can't be denied legal effect just because it's electronic, as long as you meant to sign. What a drawn signature lacks is a record of who signed and when.
Can I sign a PDF in Chrome on my phone?
Google documents these editing tools for Chrome on computers. On a phone, use the built-in tools instead: Markup on iPhone or the Drive app or Acrobat Reader on Android.
Sources
- Google Chrome Help, Manage PDFs in Chrome (computer) · support.google.com
- 15 U.S.C. § 7001, ESIGN Act general rule and consumer consent (govinfo) · govinfo.gov