Gmail Ad Specs

Gmail Ad Specs

The ad is comprised of two creative elements, BOTH of which display in the
normal gmail or google apps for email
user interface and
only
to gmail and google apps for email users when they check their email:
1. The Collapsed Ad
2. The Expanded Ad
Here's another view:
The Collapsed Ad
 looks as follows and consists of the following elements:
Logo Image: Png or Jpeg; 144px x 144px
Sender: 15 characters (must be either the domain or recognized name of the advertiser)
Subject: 25 Characters (can include an offer, % discount or compelling announcement)
Body: 100 Characters (short summary or powerful call ­to ­action)
URL: 25 characters such as www.buythisbook.com
The Expanded Ad
looks as follows and consists of the following elements:
Subject
: Same as for Collapsed Ad 
Sender:
Same as for Collapsed Ad
Header Image
(optional but recommended): Png or jpeg; 630px width x [50px to 200px height] (
Not shown in the Coffee Cafe example below)
Main Image
: Png or Jpeg; 300px wide x 200px to 500px high  (So standard-sized 300x250 banner image would be fine)
Headline
: Up to 25 characters
Text content below headline
: Up to 1024 characters
Call to action button text
: Up to 20 characters
Example Collapsed Ad and Expanded Ad example screenshots above are from ​
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