Updated on 30 September 2026 by the Proposal Expert editorial team
Every way to sign a Word document, and what each one proves
The quickest way to insert a signature in Word is to scan your handwritten signature, save it as an image and add it with Insert > Pictures. Word for Windows also has a Signature Line command that marks where someone should sign and, once signed, adds a digital signature backed by a certificate. You can also draw a signature on the Draw tab, and in Word for the web, which has no signature command, you take the image route. Below are the steps for Windows, Mac and the web, what each type of signature proves, and what the law in the US, the UK and the EU says about it.
Write your signature on a plain sheet of white paper with a dark pen. Scan the page and save it on your computer in a common image format. Microsoft lists .bmp, .jpg and .png for Word on Windows, and also .gif for Word for Mac and Word for the web. Microsoft's instructions assume a scanner. A sharp photo saved as a .jpg or .png file is also a picture Word can insert, as long as the light is even and no shadow falls across the ink.
Click in the document where the signature should go. In Word for Windows, select Insert > Pictures and choose your file. In Word for Mac, go to the Insert tab, select Pictures > Picture from File, browse to the file, select it and then select Insert. In Word for the web, click Insert > Picture, go to the image file, select it and click Open.
Select the image. On the Picture Format tab, select Crop and drag the handles until only the signature is left. Then right-click the image and choose Save as Picture. Word saves the cropped signature as a separate file that you can use in other documents, so you only need to crop it once. Word for the web has no such step in Microsoft's instructions. There, Microsoft suggests cropping the image in a photo editing program before you insert it.
If your job title, phone number or email address should appear under your signature, save the picture and the text together as AutoText. Type the text under the inserted picture, then select the picture and the typed text together.
Place the insertion point where the signature block should go. In Word for Windows, select Insert > Quick Parts > AutoText and choose the name of your signature block. In Word for Mac, on the Insert menu, select AutoText > AutoText and choose the name. The picture and the typed details appear together, already cropped and in the right order, so every letter, quote or contract you sign looks the same.
A signature line shows the reader exactly where to sign. It looks like the line with an X on a printed contract, but in Word for Windows it can also carry a digital signature. Click where you want the line, select Insert > Signature Line and choose Microsoft Office Signature Line. Microsoft's help also calls this command Add a Signature Line, in the Text group of the Insert tab. In the Signature Setup box, fill in the details that should appear under the line and select OK. Repeat the steps for every person who needs to sign. To sign the line yourself, right-click it and choose Sign. You can type your name in the box next to the X, write it with the inking feature on a touch screen, or choose Select Image to use your scanned signature. Then select Sign. Microsoft explains that signing a signature line adds a visible signature and a digital signature at the same time, and that a digital signature needs a signing certificate. A Signatures button then appears at the bottom of the document, and the document becomes read-only to prevent changes.
Use the Draw tab. If your device has a touch screen, Word turns the Draw tab on automatically. Otherwise, on the File tab select Options, choose Customize Ribbon and pick Draw. Word only lets you draw with ink in Print Layout, so if the Draw tab is greyed out, go to the View tab and select Print Layout. On the Draw tab, select a pen, then use the down arrow next to it to choose a thickness and a colour. Write your signature with a digital pen, your finger or the mouse, and press Esc when you are done. The ink then behaves like any shape, so you can select it, move it and resize it. On a Mac, the Draw tab is available in Microsoft 365 and Office 2019 for Mac or later, and you can draw with a finger on the trackpad instead of the mouse. Word for iPad, iPhone and Android also has a Draw tab: tap it, select a pen and sign on the screen. Word for Windows has one more option, the Scribble line. Select Insert > Shapes and, under Lines, choose Scribble. Double-click to stop drawing.
Yes, but not every method works everywhere. On a Mac, Microsoft documents the picture method, AutoText (steps 2 to 5 above) and the Draw tab. Its instructions for the Signature Line command and for digital signatures are written for the Windows desktop versions of Word. In Word for the web, Microsoft says there is no command for inserting your signature, so you add your scanned signature as a picture with Insert > Picture. If you own the desktop version of Word, you can open the file there to do more. On an iPhone, iPad or Android device, Microsoft says you cannot add a digital signature line to a Word file without installing an add-in. You can still insert a picture of your signature, draw on the Draw tab, or add a plain line for a signature on paper.
A signature image is a picture of your handwriting. It shows that you meant to sign, but anyone who has the file can paste the same picture into another document, so on its own it proves little about who placed it there. An electronic signature is the legal umbrella term. The US ESIGN Act defines it as an electronic sound, symbol or process, attached to or logically associated with a record and executed or adopted by a person with the intent to sign. The EU eIDAS Regulation (article 3(10)) calls it data in electronic form that the signatory uses to sign. A typed name, a drawn signature and a pasted image can all fall under those definitions. A digital signature is a technical method. Microsoft describes it as an electronic, encrypted stamp of authentication that confirms the information came from the signer and has not been altered. To create one you need a signing certificate issued by a certificate authority. Microsoft compares the certificate to a driving licence that can be revoked and says it is usually valid for a year.
In most business situations it can be, provided the person meant to sign and you can show who signed what. The law in the main English-speaking and European markets does not reject a signature just because it is electronic. What differs is how much proof you have, and whether a specific law demands a stricter form. A picture pasted into a Word file is the weakest evidence, because it says little about who added it or when. When the signature matters, use a method that records the signer, the time and the exact version of the document, or a certificate-based digital signature. This is general information, not legal advice.
Most problems come down to the version of Word you use or the state of the file. Check these first.
With a quote or proposal you usually need the client to sign, not yourself, and you want a record of who signed and when. Word offers two routes. Organisations on Microsoft 365 can use Microsoft's eSignature service. According to Microsoft, it needs a subscription version of Word on the desktop, a .docx file stored on a SharePoint site where eSignature is enabled, setup by an administrator and pay-as-you-go billing linked to an Azure subscription. You open the eSignature fields panel from the Insert tab, add recipients, insert signature fields and select Create request. The recipients get a link by email and sign a PDF copy of the document, and the signed PDF, with an audit trail, is saved in the same SharePoint location as the Word file. Microsoft states that the service uses simple electronic signatures as defined under eIDAS. The second route is to save the document as a PDF and have it signed with a PDF or e-signature tool. If you write quotes and proposals every week, a dedicated tool removes the export step. Proposal Expert lets you create, send and track the quote or proposal, and your client signs it online with an eIDAS simple electronic signature, a trusted timestamp and a sealed audit trail. Proposal Expert's free plan includes 3 proposals and 3 electronic signatures a month. It signs proposals created in the app itself, not uploaded Word files.
Sign your name on white paper, scan it and save it as a .png or .jpg file. Insert it with Insert > Pictures, crop it on the Picture Format tab and save it as AutoText so you can reuse it. On a touch screen you can also draw it on the Draw tab. In legal terms, a typed or drawn name also counts as an electronic signature when you use it with the intent to sign. To prove who signed, use a digital signature with a certificate or an e-signature service that records the signer.
You first need a signing certificate from a certificate authority. Then either insert a signature line (Insert > Signature Line > Microsoft Office Signature Line) and sign it by right-clicking it and choosing Sign, or add an invisible signature with File > Info > Protect Document > Add a Digital Signature. Microsoft documents both for the Windows desktop versions of Word. After signing, the document becomes read-only.
For a signature line, right-click it, select Remove Signature and then Yes. For an invisible digital signature, select File > Info > View Signatures, click the arrow next to the signature name, choose Remove Signature and select Yes. A signature image is an ordinary picture, so you can select it and delete it.
Google Docs has no Signature Line command. Click Insert > Drawing > New, choose Scribble under Select line and draw your signature, or insert a scanned signature with Insert > Image. On certain paid Google Workspace plans, Tools > eSignature lets you add signature fields and send the document out for signing.
You can insert a picture of your signature or draw it on the Draw tab in Word for iPhone, iPad and Android. Microsoft says you cannot add a digital signature line on a mobile device without an add-in. If the document reaches you as a PDF, you can sign it with the signature tool in Files or Markup on an iPhone or iPad, or with the free Acrobat Reader app.