Putting together a new Summer Campaign for a client and have been back and forth with them regarding image and Flash Adwords ads for a Display campaign.
It used to be those ads had to be 50kb or less or you couldn't upload them to Adwords. But now it seems the allowable file size has been tripled. Its now 150kb for regular image, animated image and Flash ads.
Here's the link:
https://support.google.com/adwordspolicy/answer/176108?hl=en#