Google Ads Image Sizes 2026: Every Format and Spec

The workhorse aspect ratio across Display, Gmail, and native placements. Upload at 1200x628 so the asset renders cleanly on Retina and 4K screens. File types accepted: JPG, PNG, GIF (static). Keep file size under 5 MB. Avoid heavy text overlay — Google discounts assets with more than 20% text in the image.

Required alongside landscape for RDAs. Square serves heavily on Gmail Promotions, Discover, and mobile sidebar placements. Keep your subject centered so the crop holds up when Google trims edges for tighter square variants.

Optional but recommended for 2026. Portrait unlocks vertical mobile placements on Gmail and Discover feeds and is increasingly used by Google for in-app Display. Adding a portrait asset typically expands reach by 10 to 15% without cannibalizing other formats.

Use a transparent PNG with clear padding around the mark. Google overlays the logo on auto-generated backgrounds, so logos with tight crops or embedded backgrounds render poorly. The square logo is required.

Optional but improves rendering on wide horizontal placements such as in-app banners. Supply the wordmark version of your logo rather than a squeezed square variant.

Upload landscape at 1200x628 and square at 1200x1200. Both are required so Google can switch formats based on placement. Single image ads are the baseline format and convert well for offer-driven campaigns.

Each card carries its own image, headline, and final URL. Carousels work for product collections, feature walkthroughs, and sequential storytelling. All cards must share the same aspect ratio within a single carousel. Minimum resolution matches single image ads.

Unlocks vertical Discover and Gmail mobile placements. Demand Gen relies heavily on portrait inventory compared to legacy Discovery, so skipping this asset materially reduces reach.

Vertical video serves YouTube Shorts, Discover video slots, and Gmail video cards. Upload directly to YouTube and reference by URL in the Demand Gen asset group. Keep captions on — a majority of Shorts impressions render with sound off.

Demand Gen supports product feeds for retailers. Link a Merchant Center account and Google will pull product images, titles, and prices into carousel and single image ads automatically. Feed image specs follow Shopping requirements (covered in section 7).

Plays before, during, or after watch content. Viewers can skip after 5 seconds. Charged when a viewer watches 30 seconds (or the full ad if shorter) or interacts. Design the core hook into the first 5 seconds. 15 to 30 seconds is the conventional sweet spot for view-through rate.

Runs to completion with no skip option. Charged on CPM. Best for reach campaigns and top-of-funnel awareness where message completion matters. Use when brand lift is the KPI rather than direct response.

Non-skippable 6-second spots charged on CPM. Reach-efficient and memorable when paired with longer in-stream ads in a sequence. Design for a single memorable beat — logo, tagline, and one visual.

Shows on YouTube search results, watch-next suggestions, and the YouTube home feed. The thumbnail is the primary creative — design it to match the YouTube visual language (bold text, expressive faces, high contrast). Charged on click through to the video watch page.

Vertical video plays between organic Shorts. 10 to 60 seconds works best. Shorts inventory now exceeds classic in-feed on mobile, so a 9:16 master is required creative for any serious 2026 YouTube plan. Captions on.

Displays alongside skippable in-stream on desktop YouTube. JPG, PNG, or static GIF up to 150 KB. Optional but useful for reinforcing the call-to-action while the video plays.

Upload up to 15 headlines and 4 descriptions; Google mixes them into the final ad. Pin critical headlines (brand, legal) to position 1. Aim for 8 to 12 headline variants minimum to reach Excellent ad strength. Include core keywords in at least 2 headlines for quality score.

Extra links below the main ad pointing to specific pages. Sitelinks can include two 35-character descriptions per link. Ads with 6+ sitelinks see 10 to 20% higher CTR than ads with none. Add sitelinks at the campaign or ad group level.

Displays a tap-to-call button on mobile Search results and an icon on desktop. Conversion tracked via Google forwarding number. Essential for lead-gen and local-service campaigns. No creative upload required — just a verified phone number.

Up to 20 images per campaign. Eligible for mobile Search ad slots and materially lift CTR when approved. Image assets follow the same content guidelines as Display (no heavy overlay text, no text takeover). Supply both square and landscape for maximum coverage.

Show an inline list under the ad (Services, Destinations, Features). Choose from Google-defined categories and provide 4 to 10 values. Useful for B2B and travel advertisers to showcase breadth without spending headline slots on lists.

App campaigns auto-create ads across Search, Display, Play, YouTube, and Discover. Provide images at 1.91:1, 1:1, and 4:5; videos at 16:9, 1:1, and 9:16. Google uses app store listing assets as a baseline and mixes in your uploaded creative. Ad strength improves sharply when every aspect ratio is supplied.

Upload to Merchant Center. Apparel items require minimum 250x250 and maximum 64 megapixels. White background preferred but not required. No promotional text, watermarks, or borders on the primary image. Use additional image slots for lifestyle shots and multi-angle views.

Retail-specific PMax pulls from the Merchant Center feed and layers your asset group creative on top. Required assets match standard PMax: logos, images, videos, headlines, descriptions. Shopping surfaces render feed imagery; Display, YouTube, and Discover render your asset group creative.