I added my logo in Gmail signature like so:

enter image description here

it renders perfectly crystal clear, before sent, and after arrived on the other end. I send it to myself and opened it on my MacBook, it looks perfect as is. See below: enter image description here

Then I copied that exact signature to Mail > Preferences,

enter image description here

save it, quit Mail App, and tried to send it out. It blows up so huge...

enter image description here

How do I solve this issue? does anyone else face this issue ?

I've tried to resize that logo to 100 x 50 px, but it makes my image very pixelated.

Any suggestions would be greatly appreciated.

  • What happens when you send the second mail (in Mail.app)?
    – Thinkr
    Commented Mar 13, 2023 at 14:35
  • See that drop down to the right of your logo in the signature window? Click it, and I think it will offer options as to size (small, med. original)
    – cmason
    Commented Mar 7 at 17:43

1 Answer 1


The only possible solution I can find is to resize the image but you have already tried that.

Unless apple mail allows resizing the images within signature; I guess we'll have to live like this.

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