Insert the picture
Click where the signature belongs. Open the Insert tab, choose Pictures, then pick your signature file from your device. Word places the image at the cursor.
Adding a signature on Word takes about two minutes once you know which menu it lives in. This guide covers putting a signature in Word on Windows and on Mac, creating the signature image itself, adding a digital signature with a certificate, and the neatest way to handle it when a second person needs to sign.
There are three ways of putting a signature in Word, and they do genuinely different jobs. Pick the one that matches what the document is for.
This is the method most people mean by adding a signature to Word: a picture of your handwritten signature, dropped onto the page and positioned so it sits on the line rather than pushing the text around.
Click where the signature belongs. Open the Insert tab, choose Pictures, then pick your signature file from your device. Word places the image at the cursor.
With the picture selected, the Picture Format tab appears. Open Wrap Text and choose In Front of Text. Now you can drag the signature anywhere, including on top of an existing line. Resize from a corner handle so the proportions hold.
Select the signature plus any typed lines under it, then use Insert, Quick Parts, Save Selection to Quick Part Gallery and save it as AutoText. Every future document takes one step instead of three.
A signature line is the formal version. It prints a labelled placeholder that tells the reader exactly who is expected to sign and in what capacity, which is why it turns up on contracts and board papers.
If nobody involved has a certificate, the signature line still earns its place as a clear printed placeholder. Signing it inside Word is the part that needs a digital ID.
The signature line setup box belongs to Word for Windows, so on a Mac the dependable route is a signature image. macOS will capture one for you, which makes this the fastest way of creating a signature in Word on any machine.
Open any document in Preview and show the Markup toolbar, then choose the signature tool. You can sign on the trackpad, hold a signed sheet of paper up to the camera, or sign on a nearby iPhone or iPad. Preview keeps the signature for reuse.
Drop the saved signature onto a blank page in Preview, then export that page as a PNG. That gives you a signature image you can insert anywhere, not just in Preview.
In Word, use the Insert menu, choose Pictures and then Picture from File. Select the image, then set Wrap Text to In Front of Text in the Picture Format tab so it can be dragged onto the line.
If a colleague sends you a document that already has a signature line in it, the placeholder shows up as they intended. Adding your own picture on top of it is a perfectly normal way to return a signed copy for filing.
Most signatures that look wrong in a document were fine on paper and lost something on the way in. Five minutes spent on the image is the difference between a crisp signature and a grey rectangle.
Use plain white paper and a dark pen with a reasonably thick nib. Fine ballpoint lines thin out badly once they are scanned and shrunk to signature size. Sign three or four times and keep the best one.
Straight on, in even light, with no shadow falling across the page. A phone scanner app works as well as a flatbed here.
Trim to the ink, then push the contrast until the paper goes white and the stroke goes black. Save as PNG.
In Word, select the picture, then Picture Format, Color, Set Transparent Color, and click the white area. Remove Background handles the fiddlier cases.
The Draw tab lets you write with a stylus, a finger on a touchscreen, or a mouse. Handy on a laptop with a pen, and there is no file to manage.
If the finished file needs to be a PDF, you can sign a PDF online in the browser and skip the round trip entirely.
A digital signature in Word is a different thing from a picture of your name. It attaches a certificate to the file, records the state of the document at the moment you signed, and lets anyone opening it later see whether the contents have changed since.
Everything above is about signing a document yourself, and Word does that happily. The moment somebody else is involved, a few extra moving parts appear, and they are worth knowing about before you send the file.
None of that is a problem for a document you are signing and filing yourself. It is simply the point at which sending the document for signature saves more time than it costs.
Keep writing in Word. When the document is ready and somebody else has to sign it, this is the shorter path from finished draft to filed agreement.
Upload your Word file, drop the signature field on the line you already made, and send it. Free to try, no card needed.