How to Insert a Signature in Word: Windows, Mac and Digital

More businesses are turning to electronic signatures to make contracting safer and more efficient, but signing a document directly in Microsoft Word isn't always straightforward.

Can you add a real signature in Word?

Word offers two ways to add a signature to a document: inserting a scanned image of your handwritten signature, or adding a signature line for physical signing later. Neither of these creates a legally verified digital or electronic signature. Word has no built-in encryption or identity verification, so for contracts that need genuine legal validity, you'll need a dedicated eSignature tool, covered further below.

How to add a signature in Word on Windows

Method 1: Insert a scanned signature image

1. Write your signature on a clean, blank piece of paper.
2. Take a photo or scan it, and save it as a JPG or BMP file.
3. Open your Word document, go to Insert > Pictures > This Device, and select the image.
4. Go to Picture Format > Crop, and trim the image down to remove excess white space.
5. Right-click the image and select Save as Picture to save it as a reusable file for future documents.

Method 2: Add a signature line

1. Open your document and click where you want the signature line.
2. Go to Insert > Signature Line > Microsoft Office Signature Line.
3. Add the signer's name and title if needed, then click OK.

This method preps the document for a physical, wet-ink signature rather than digitally embedding one.

How to add a signature in Word on Mac

1. Write your signature on paper and photograph or scan it.
2. If using an iPhone, AirDrop the image to your Mac, or save it directly to your desktop.
3. Convert it to PNG or JPG if it saved as HEIC, using Preview's File > Export.
4. In Word, go to Insert > Pictures > Picture from File and select the image.
5. Use Picture Format > Crop to trim it down.
6. Right-click and Save as Picture to reuse it later.

Adding a signature line on Mac follows the same steps as Windows.

How do I create an electronic signature?

A few ways to add an actual electronic signature to a document:

• Draw, scan and import an image of your handwritten signature
• Use a native tool like Preview on Mac
• Use Adobe Acrobat for PDF-based signing
• Use a free online signing tool
• Use a contract management platform with native eSignature capability

Also read: types of electronic signatures and which to use

Moving beyond Word for signing contracts

Inserting a signature into Word doesn't answer whether that signature is actually legally valid. There's no data encryption and no way to track who edited or signed the document or when.

SpotDraft's contract editor uses a familiar Word-like interface for redlining and collaboration but adds built-in eSignature capability that removes the need to insert images or add signature lines manually. Signer details can be pulled directly from your CRM, and the contract is sent out for signature immediately. See our step-by-step guide to contract signing for how this fits into the broader execution process.

Schedule a demo with SpotDraft to see it in action.