One master, every placement
Turn one approved master into vertical, square, feed, and landscape variants. Unlike a basic crop or letterbox, image mode generates the missing scene around your layout; video mode keeps the subject visible across the full shot. The product is not stretched and the empty area is not filled with black bars.
Upload a finished image ad, pick its destination ratio, and generatively extend the scene. This changes the composition, not the product proportions.
Sample result gallery
Fifteen real runs. The five video pairs are ads from public ad libraries put through this tool — vertical opened out to landscape and landscape rebuilt as vertical — and both sides play in full so you can watch what happens outside the original frame line. The image pairs are original static creatives from Soku Ad Library reframed into a new placement.
The vertical original is a phone-width slice of a hallway. The landscape cut keeps the model centred and builds the rest of the room around her, with the product captions still legible.
Source: Ad archive · Quince
Bedroom set extended left and right — door, lamp, framed art — while the presenter, the applicator and the 'Daily Face Lift' caption hold their position.
Source: Meta Ad Library · Soluna SKIN
A tight vertical talking-head opened out to a full room. Review generated edges before running this on regulated categories — everything outside the original frame is new.
Source: Meta Ad Library · Based Supplies
The reverse direction: a landscape interview reframed for Stories. The speaker stays in frame across cuts instead of being centre-cropped out of the shot.
Source: Meta Ad Library · Texas Engineering Executive Education
The blue scene grows vertically while the bottle, hand, benefit labels, and connector lines keep their proportions.
Source: Soku Ad Library · Cove
The campaign texture extends vertically; logos, CTA, guide cover, and card remain legible and undistorted. 4:5 is on the studio’s video ratio menu, not its image one — for a still, 1:1 or 3:4 are the closest feed sizes on offer.
Source: Soku Ad Library · Brex
The headline, CTA, globe, and product UI are recomposed into a square instead of simply losing the bottom of the ad.
Source: Soku Ad Library · Deel
A tall editorial product layout is tightened for feed while retaining the bottle, benefits, icons, and warm styling. As above, image mode offers 1:1 and 3:4 rather than 4:5.
Source: Soku Ad Library · Stanley
The lifestyle room expands laterally so the person, newspaper folds, and full handwritten hook remain part of the same composition.
Source: Soku Ad Library · Voilà Candles
The clean white studio grows vertically and the existing B2B message, CTA, chair, and consultation note are redistributed.
Source: Soku Ad Library · Lattice
The warm graphic environment extends sideways while the watch stays central and both layers of copy remain readable.
Source: Soku Ad Library · PRVNT
The vertical original stops at the calf. The landscape output extends the studio floor and completes the model down to the shoes, keeping the three detail crops, callout lines, colour name, and burgundy palette exactly where they were.
Source: Soku Ad Library · apparel creative
A dense portrait campaign is rebuilt across a landscape frame while eyewear, talent, headline, exploded lens, and feature strip stay present.
Source: Soku Ad Library · Ray-Ban Meta
The green product world expands vertically while the pouch and all seven benefit callouts remain part of the placement.
Source: Soku Ad Library · Food Strong
Requested: 9:16. The original master only captured a sleeve and hand; the vertical output generates the scene beyond that frame line. Review invented areas before using contracted talent or regulated products.
Source: Live advertising reference clip
Features
A crop discards everything outside the target ratio. This keeps the composition and creates the missing scene around it, so a 16:9 master can become 9:16 without cutting the subject in half.
Product proportions stay intact. New ratios come from recomposing and extending the frame, never from pulling pixels sideways or padding with black bars.
Stills are recomposed; video holds subject continuity across the whole shot. Both return the real media file rather than a preview frame.
The studio offers the sizes the active mode actually accepts, so a paid job never fails on an unsupported dimension after you have been charged.
Each run records its source, target ratio, status, cost and output, so a placement family can be compared without guessing which file used which settings.
The approved variant is already in the workspace the campaign launches from — no re-upload between resizing and running it.
What happens after generation
Every paid run stays in your history with its source, settings, status, cost, and output. Download the approved file immediately; use Canvas later only when you need to build more variants around it.
Start with my assetStills and video take different paths — one recomposes a layout, the other holds motion continuity across a shot — and both return the actual media file, not a preview frame.
Product proportions stay intact. New aspect ratios are made by recomposing and extending, not pulling pixels sideways.
The studio only offers ratios its active model accepts, preventing paid jobs from failing on an unsupported size.
Each run records its source, target ratio, cost, status, and output so you can compare a placement family without guessing which file used which settings.
Start from the highest-resolution version you have. The model can create missing scene area, but it cannot recover a product detail that was never visible in a compressed source.
Use 9:16 for Reels, Stories, TikTok, and Shorts; 4:5 or 1:1 for feeds; 16:9 for YouTube and landscape placements.
Check faces, hands, packaging, legal copy, and every area outside the original frame. Generated edges are new pixels, so approve each destination ratio independently.
Why Soku
Every channel wants a different shape, and the usual answers are all lossy: crop and lose the subject, letterbox and lose the impression, or send the designer back to rebuild the layout. Extending the scene keeps the ad that was approved and gives each placement the frame it wants.
Because the composition is preserved and the frame grown around it, every ratio still reads as the campaign that went through review.
A click never buys the whole placement set. Approve the first generated edge treatment before paying for the rest.
Everything outside the original frame is new, and we say so — faces, hands, packaging and legal copy are what to check on each destination ratio.
Standalone resizers end at the download. Here the variant lands next to your campaigns, so the agent can launch it and report which placement converts.
Use cases
Performance marketer
The creative already carrying the account gets a Stories, feed and landscape cut without going back into production for each one.
Agency
Clients ask for the matrix, not the master. Producing it from the approved file keeps the delivery on-brand and off the designer queue.
E-commerce
One product image becomes the square for feed, the vertical for Stories and the landscape for YouTube, with the pack proportions untouched.
Brand team
A resize that preserves the layout is a resize that does not quietly drift away from the brand book in each market.
Social and content
Footage shot 16:9 gets a 9:16 cut where the subject stays in frame, instead of a centre crop that clips heads.
Growth and experimentation
Same creative, different frames, same audience — so the result is about the placement rather than about a new design.
Specifications
One approved still in, one placement-ready still out, with the layout preserved.
A short cut in, the same cut reframed for another placement out, with the subject held in frame.
Alternatives
There are three honest alternatives: crop it, letterbox it, or have a designer rebuild the layout at each size. Each trades away something specific.
What happens to the frame
Subject stays whole
Product proportions
Uses the full placement
Needs the source files
Time per placement
Comparison is by category, not by vendor — the specific tools in each column change faster than this page does.
Pricing
Resizing is billed in credits, so a month costs what you generated rather than how many people had a login.
One run is one ratio on one asset, at a charge shown before you generate and recorded against that run. Build the placement set one approved variant at a time instead of buying it up front.
$0/ month
No card required
$19/ month
7,000 credits / month
$49/ month
20,000 credits / month
Prices are per month, billed monthly. See all plans and the credit calculator.
Upload the approved master, pick one placement ratio, and inspect the generated edges at full size before it goes live.
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