Notes:

Adding a transparent Logo. You have 2 file format choices .gif and .png

Smart Object Graphics (new In Dreamweaver)

In Photoshop, when you make an image (it doesn't have to be layered) and you convert it into a "Smart Object" and then save it as a Photoshop PSD file ---you can then load the smart PSD file into Dreamweaver's Image editor save the resized file as a .png file

 

Now you can re-edit the logo in Photoshop and Dreamweaver will tell you there has been a change, the red arrow says the logo has been edited.

Click on the red arrow and the logo will be updated in Dreamweaver and on your sever --automatically.

 

Updated Logo ...

 

 

 

 

You could also put the logo in a Div so you can place it precisly... If you resize the .png on your web page Dreamweaver will reload the psd file in the Image Editor and adjust the image using the .psd file... with no loss of image data.