Leaderboard
sponsor-logo-square.png
- Required
- 728 × 90
- Uploaded
- 1080 × 1080
Passing this placement would require a crop. DropAsset left the file unchanged.
Ad creative validation
Stop discovering incorrect dimensions, unsupported formats or oversized files after the campaign is already waiting. DropAsset checks every submission against the requirements you set as soon as it is uploaded.
Dimensions checked · Formats verified · File size validated · No advertiser account
summer-sale-banner.jpg
1200 × 628 · JPG · 1.8 MB
Requirements
Homepage banner
Validation
Before trafficking
Manual handoff
Advertiser emails an attachment
Media sales forwards it
Ad ops opens the file
Dimensions are checked by hand
Wrong format or an oversized file shows up
Another email goes out
The team waits for another version
Checked at upload
ReadyRequirements stay on the asset slot. DropAsset runs the checks when the file arrives, so the first look is a status instead of a manual open.
What gets checked
Each asset slot carries the rules for that placement. DropAsset checks the upload against those rules. The ad creative validation checklist is a practical way to review which requirements to include.
Verify assets match the required pixel dimensions for that placement.
Enforce the ratio when the placement allows flexible dimensions.
Accept only the formats configured for the slot, such as JPG, PNG, and WebP.
Catch files that are above the configured limit before they move downstream.
Require the destination URL when the placement needs one with the creative.
Safe preparation
DropAsset can prepare a compatible Ready version when the correction is safe. That can include resizing or downscaling, compression and supported format conversion.
It does not force a crop, stretch an image or upscale a file just to make it pass.
Original → validation and preparation → Ready
Uploaded
2400 × 1200
PNG · 3.4 MB
Ready
1200 × 600
JPG · 420 KB
Preparation steps
Needs attention
DropAsset does not silently create a distorted creative. If a safe correction is not available, the submission stays flagged for review.
Wrong aspect ratio
Matching the placement would require cropping the image. DropAsset flags it instead.
Dimensions too small
Passing the required size would mean upscaling the image. The file stays Needs attention.
Format the slot does not accept
An unsupported submission cannot be safely prepared into a Ready file.
Leaderboard
sponsor-logo-square.png
Passing this placement would require a crop. DropAsset left the file unchanged.
Workflow
Add exact dimensions or an aspect ratio, accepted formats, a file-size limit, and a landing URL when the placement needs one.
Advertisers open the public link and submit files without creating an account.
Format, dimensions or aspect ratio, file size, and landing URL are checked on upload.
Download the Ready file when safe preparation was applied, or open the submission that still needs a correction.
Request status
A request shows which slots are Ready and which still need attention, with the required dimensions on each slot.
Spring Launch
2 of 3 required assets ready
Homepage banner
1200 × 628
Medium rectangle
300 × 250
Leaderboard
728 × 90
Who it is for
Check direct-sold creatives against placement specs before they are trafficked.
Learn moreSee Ready and Needs attention before a file enters the trafficking queue.
Learn moreSpecs are checked when the advertiser uploads, not after the handoff.
Learn moreGive local advertisers a clear spec and catch size or format issues at upload.
Learn moreKeep campaign files checked against the placement before they move downstream.
See which creatives are ready and which still need a corrected file.
Email / shared drives
DropAsset
DropAsset checks the file against the requirements on that asset slot. That includes format, exact dimensions or aspect ratio, file size, and a landing URL when one is required. The submission is marked Ready or Needs attention.
Yes. Each asset slot can require exact pixel dimensions. DropAsset compares the uploaded image with those dimensions and shows whether it passed.
If the slot requires an aspect ratio and the file does not match, DropAsset marks the submission Needs attention. It does not crop or stretch the image to force a match.
No. DropAsset only prepares a corrected version when the change is safe and compatible with the request. It does not force crops, stretch images or upscale files simply to make them pass.
Yes. When safe preparation is applied, DropAsset keeps the Original upload and provides a Ready version. You can preview and download both.
Yes. Advertisers open the public request link and upload without a DropAsset account.
Create a request, define the requirements and give advertisers one place to submit campaign-ready assets.