Creative Solutions

Creating digital advertising that encourages interaction for every viewer

Digital Media Services

Digital Media Services outside of Tribune Publishing's websites, including Paid Social, Programmatic Advertising, and Email Marketing.


Display (Banner) Ads

CPM Calculator

Image dimensions (Desktop):

  • 728x90*, 300x250*, 160x600* (standard sizes)
  • 300x600

Image dimensions (Mobile):

  • 320x50*, 300x50*, 320x100 (smartphone banner, most common)
  • 300x250*, 320x160, 320x480, 336x280* (mobile interstitial, tablet in-app, mobile web)
  • 728x90* (tablet only)

File size:

  • 150 KB max for each image.
  • Bulk upload in ZIP files that are up to 10 MB.

File type: JPG, GIF, PNG, HTML5
Animation length: No more than 15 seconds and/or 3 loops
Border: Creative must clearly separated from the site content, either by a clear border or a non-white background color.

*Recommended Ad Sizes

Audio Ads

File formats: MP3, OGG, M4A, MP4, AAC
Length: 15 seconds, 30 seconds, or 60 seconds
Max file upload size: 100 MB Minimum Audio Bitrate: 320 kbps or higher

Video Ads

Note: Video files must include audio. If your video file does not have any audio, you will not be able to upload it.

Video dimensions:

  • Minimum height of 144 px
  • Up to 1920x1080. Avoid uploading UHD (4K) video or higher resolution.

File type for video: .AVI, .MOV, .MPEG
Aspect ratio: 16:9 or 4:3
Max file upload size: 100 MB

Native Ads

These specifications represent ads that can spend on almost all supply sources. To achieve optimal results, provide multiple ads that meet the characteristics of specific exchanges and publishers. However, if you only have one ad or set of ads, follow these specifications:

  • Headline: 20 characters (however, 25 characters is accepted on almost all inventory)
  • Body: 90 characters
  • Main Image: Exactly 1200x627 (1.91:1 aspect ratio)
  • Icon/Logo: Exactly 240x240 (1:1 aspect ratio)
  • Brand Name: 25 characters

Note: These specs are the lowest common denominator usable on the DSP's current supply sources. Native ads vary greatly by publisher and exchange; for best results, produce ads to the specifications of each publisher or exchange.

Google Custom Display Ads

If you are designing and developing your custom display ads, be sure they meet the following specifications:

Max file size 150 KB

  • Image Formats: GIF, JPG, PNG
  • Animation length and speed: Animation length must be 30 seconds or shorter. Animations can be looped, but the animations must stop after 30 seconds. Animated GIF ads must be slower than 5 FPS. HTML5 ads are discouraged due to limited inventory.
  • AMPHTML Formats: ZIP containing 1 HTML document and up to 39 media assets.

Google Responsive Display Ads

These ad units allow advertisers to fill every space on the Google Display Network. This includes Native, Text, and Banner ad spaces. They do this by being responsive to the space and showing one of many text and visual combinations available. That will affect the way our ads appear:

  • Images will be scaled to fit into each ad unit.
  • Text combinations will be chosen based on available space.
  • Some text will be truncated in limited areas.

Impressions are higher as Google is increasingly preferring to use Responsive Ads to fill inventory, but on top of that, CTR for these Responsive Ads is higher than both other ad units.

Requirements for Images and Logos (responsive display ads):


  • Landscape should have a ratio of 1.91:1 and be greater than 600 x 314. The file size limit is 5120KB.
  • Square (1:1) should be greater than 300 x 300. The file size limit is 5120KB.


  • Square (1:1) should be 128 x 128 or greater. The recommended size for the square logo is 1200 x 1200.
  • Landscape (4:1) logo, should be 512 x 128 or greater. The recommended size for the landscape logo is 1200 x 300. For all your logos, a transparent background is best, but only if the logo is centered. The file size limit is 5120KB.


  • Not possible to optimize per ad type/size/format performance – this is done automatically by Google’s algorithm.
  • Not possible to customize logo, images, headline per ad type/size – this is done automatically by Google’s algorithm.
  • Not possible to customize fonts size/format
  • Caps lock are not allowed
  • Not all uploaded assets will always appear – some ads will show with only the short headline; without a description or even imageless.



Here's an Always Up-To-Date List of Facebook/Instagram Ad Sizes & Specs


Recommended Video Durations: :15, :30
YouTube video: Provide a link for a video that's already uploaded to YouTube.
Headline: Enter a headline that promotes your product or service.


Waze Ads Formats & Specs


Tiktok Ads Formats & Specs


Snapchat Ads Formats & Specs

e-Mail Marketing


Physical size: Max Width 600px; No Max Length, but minimum 800px preferred

Additional info:

  • HTML can have static images only,
  • No video. A video icon can be placed as a watermark over a still image with a click-through URL where the end-user can be driven to watch if the client 'wants' video.
  • No animated gifs

IMPORTANT: Display and Facebook targeting campaigns start on the day of the email deployment and will run until the contracted impressions are fully served. The retargeting campaign could range from a few weeks or more based on the number of impressions and targeting involved. All creative, including email, display, and Facebook is required 1-2 business days prior to the email deployment date.

Facebook Retargeting

Facebook Ads Formats & Specs

Display Retargeting


  • Standard IAB Sizes: 300x250, 728x90, 160x600, 300x600, 320x50, 300x50
  • No flash or HTML accepted.
  • Tracking Link – the destination URL where the ads will drive users.

Find the Designthat works for you!

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160 N Stetson Ave. Chicago, Illinois

Feel free to reach out to our Creative Team!