Mail Signature: image size keeps changing to fit window

My problem as well. Have tried various file formats (jpg, png, tiff), resized and saved in Preview, even tried to capture a small version of the picture using Grab. All of them revert to being twice as big as I want.

I found a solution here that seems to work:

http://matt.coneybeare.me/how-to-make-an-html-signature-in-apple-mail-for-sierra -os-x-10-dot-12/

Did not try it myself because I found it a bit complicated and, not wanting to go through the trouble, I just saved the logo image in a smaller size and left it blurry in my signature.

Anyway, hope it helps.

I have found that setting the width of the table that I use to code my html signature in helps. So in short: Use tables for your layout and use a single table cell for your image (with the width set on the table and/or cell itself).

same issue,

but I believe that is connected to the resolution.

Appereantly Mail accept ony low resolution logo (72dpi) and maintains that size. If you paste a higher resolution (300) becase you are interested in higher qualitiy prints, that's gets much larger, because mail is converting to 72?

Anyone explored this issue further??

I have this problem, too. But the suggested fix doesnt work- my image is a png at 72 dpi and it is still getting expanded by Mail....

I am having the same problem and have tried the same attempts for a solution without luck. Any other solutions?

I looked at the link you posted and way too complicated for me too. I did try shrinking my logo signature but it still remained the same size, uug!