What size should a stream overlay be?
Stream overlays are sized against a 1920 by 1080 canvas, the standard broadcast resolution. On Publsh each ad placement has a fixed, deliberate size: a corner logo is 160 by 90 pixels, a lower third is 1200 by 138, a full banner strip is 1920 by 140, and an ad card is 480 by 270 (or 300 by 400 in portrait). Those are the exact dimensions the overlay renders, so a creative built to them fits cleanly the first time, on Kick or Twitch.
Size everything against a 1920 by 1080 canvas
Broadcast software like OBS works on a 1920 by 1080 canvas by default, and every overlay size is best understood as a region of that frame. Thinking in those terms keeps two things straight: how big a placement looks to a viewer, and how much of the screen it actually occupies. The dimensions below are the exact regions Publsh renders each placement into, so you can design or brief a creative to fit before anything runs.
Corner logo: 160 by 90
The corner logo is the lightest placement, 160 by 90 pixels, tucked into a corner of the frame (top-right by default, with a small margin from the edge). It is the least intrusive way to carry a sponsor: present and legible, but well out of the way of gameplay or camera. Because it holds the smallest share of the screen, it is the placement that changes your stream the least.
Lower third: 1200 by 138
The lower third is a wide, short band, 1200 by 138 pixels, sitting across the lower-center of the frame. It gives a sponsor real presence without covering the action above it, which is why it is a natural fit for a brand that wants more than a small logo but does not need the whole width of the screen. It reads clearly on stream and in a clip.
Banner strip: 1920 by 140
The banner strip runs the full width of the frame, 1920 by 140 pixels, flush along the bottom. It is the largest standard placement, so it holds the biggest share of the screen and carries the most weight for a sponsor. Reserve it for the placements you want to price highest, because size on screen is part of what a brand is paying for.
Ad card: 480 by 270 (or 300 by 400 portrait)
The ad card is a larger, self-contained unit, 480 by 270 pixels in landscape or 300 by 400 in portrait, placed toward a bottom corner. It suits a creative that needs more room than a logo or a band, such as a product shot or a short offer, while still leaving the rest of your stream clear. Pick the orientation that fits the creative and the corner you want to give up.
Why the sizes are fixed, and why that helps you
Publsh uses set dimensions rather than letting every ad be a different size, and that is deliberate. Fixed sizes mean a creative built to spec renders correctly the first time, with no scaling artifacts or awkward crops, and only one placement runs at a time so your stream never turns into a wall of mismatched boxes. Fixed sizes also make the share of screen each placement holds a known quantity, which is part of how a placement is valued: a bigger region in front of the same audience is worth more.
How the overlay renders these in OBS
You do not resize anything per ad. The Publsh overlay is a single browser source you add once to OBS (or Streamlabs, or your Kick setup), and it renders each booked creative into its correct placement automatically at the sizes above. Claim your handle on Publsh to get on the list; when your account opens you get a personal overlay link, and from then on the approved ads render at spec while you keep streaming. It works the same on Kick and Twitch, because a browser source is platform-agnostic.
Build to the size once, and every booked ad fits your stream the first time.
Frequently asked
What size should a stream overlay be?
Size it against a 1920 by 1080 canvas. On Publsh the ad placements are a corner logo at 160 by 90, a lower third at 1200 by 138, a full banner strip at 1920 by 140, and an ad card at 480 by 270 (or 300 by 400 portrait). A creative built to those fits cleanly on Kick or Twitch.
What is a good size for a lower third on stream?
On Publsh a lower third is 1200 by 138 pixels on a 1920 by 1080 canvas: a wide, short band across the lower-center that gives a sponsor presence without covering the action above it.
What size is a full stream banner?
The banner strip is 1920 by 140 pixels, running the full width of the frame along the bottom. It is the largest standard placement and holds the biggest share of the screen.
Do you have to resize each ad yourself?
No. The Publsh overlay is one browser source you add once, and it renders each booked creative into its correct placement at the right size automatically, so you never hand-size an ad per sponsor.
What canvas size does Publsh use for overlays?
1920 by 1080, the standard broadcast resolution, so the placement dimensions are consistent whether you stream on Kick or Twitch.