I would like to upload retina versions of my Google Adwords display ads (at twice the size) for my campaign, is this possible, and if so, how/where do I upload the retina-sized files?
I would like to upload retina versions of my Google Adwords display ads (at twice the size) for my campaign, is this possible, and if so, how/where do I upload the retina-sized files?
You should be able to upload banners twice a size for retina displays into AdWords interface without any problems. AdWords itself decides, when to serve retina/standard verison.
List Of Retina Sizes: as of 08/2014:
Sources: