How to Add a Signature in Google Docs

People add signatures to Google Docs for contracts, permission slips, offer letters, and proposals. Neither built-in method is as smooth as signing a PDF, but both work fine for everyday documents.

Method 1: Use the Drawing Tool (Draw Your Signature)

Google Docs has a built-in drawing canvas that you can use to draw a freehand signature directly in the document.

1. Click in the document where you want your signature to appear.
2. Go to Insert → Drawing → + New.
3. In the drawing canvas that opens, click the Scribble tool (the wavy line icon, usually found in the line tool dropdown).
4. Draw your signature using your mouse or trackpad. It will appear in the canvas.
5. Click Save and Close.

Your signature appears in the document as an image. You can click it to select it and then resize or reposition it. To edit it later, double-click the signature to reopen the drawing canvas.

Honest assessment of this method: Drawing with a mouse is difficult and usually produces a messy, inconsistent signature. If you have a touchscreen laptop or a drawing tablet, it works much better. For most people using a regular mouse, the result looks like it was drawn by someone in a rush - fine for internal documents, but skip it for client-facing contracts.

Method 2: Insert a Signature Image (Better Quality)

This method produces a much cleaner result. You create a transparent PNG of your signature once, then insert it as an image anywhere in Google Docs.

Step 1: Create the signature

Use SignatureHub's handwritten signature tool to draw or type your signature and download it as a transparent PNG. The transparent background means it sits cleanly over the white document without a visible white box.

Step 2: Insert it in Google Docs

1. Click in the document where you want the signature.
2. Go to Insert → Image → Upload from computer.
3. Select your signature PNG file.
4. The image appears in the document. Click it to select it, then drag the corner handles to resize.

Positioning the image

By default, images in Google Docs are inline, meaning they sit in the text flow. For a signature at the bottom of a letter, you usually want it positioned independently. Here's how:

1. Click your signature image to select it.
2. Click the image options that appear below (the three options: "In line", "Wrap text", "Break text").
3. Choose "In line" if the signature should sit between the closing line and your typed name. Or choose "Wrap text" if you need to drag it over a specific area.

Keep the signature image small, roughly the same visual size as 2–3 lines of regular text. If it's larger than your name typed below it, it'll look disproportionate.

Method 3: Use a Google Workspace Add-on

If you sign documents in Google Docs frequently and need a more robust solution, there are add-ons in the Google Workspace Marketplace that add proper e-signature support. Tools like DocuSign for Google Workspace or HelloSign integrate directly into Google Docs, letting you add signature fields that others can fill in.

These make most sense if you're sending documents out for others to sign, not just signing your own documents.

Saving Your Signed Document

Once your signature is in the document:

• To share as a PDF: File → Download → PDF Document (.pdf). This locks the layout.
• To share as a Google Doc: use the Share button as usual. Recipients will be able to see the signature but also potentially edit the document unless you restrict permissions.

For contracts or formal documents, always download as PDF before sending. This prevents anyone from accidentally (or intentionally) modifying the document after you've signed it.