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In a new message in classic Outlook for Windows, go to Insert, selectÂ
 Signature and choose Signatures. -
In the Select signature to edit box, choose the signature to add a logo or image to.
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Choose theÂ
 image icon on the right, locate your image file, and select Insert. -
To resize your image, right-click the picture and select Size and Position. Use the options to resize your image.Â
If you don't see Size and Position, select Picture and then choose Size or other options.Â
Tip: To remove an image in one message, select the image and press Delete. To remove from all future messages, follow the above steps. Choose the image in the editor, press Delete, and then select Save.
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On the View tab in new Outlook for Windows, selectÂ
 View settings. -
Select Accounts > Signatures.
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Under Email signature, in the dropdown list, select the signature you want to add an image to.
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Place the cursor where you want the image, chooseÂ
 Insert pictures, locate your image file and select Open. -
To resize your image, right-click the picture, select Size, then choose an option.
You can also resize the image by selecting the image and dragging one of the corners.
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On the View tab in Outlook on the web or Outlook.com, selectÂ
 View settings. -
Select Account and choose Signatures.
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Under Email signature, in the dropdown list, select the signature you want to add an image to.
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Place the cursor where you want the image, chooseÂ
 Insert pictures, locate your image file and select Open. -
To resize your image, right-click the picture, select Size, then choose an option.
You can also resize the image by selecting the image and dragging one of the corners.