Viber Ads Manager

Creative specifications

Updated: 2026-05-25

The platform enforces specs strictly — a file that does not match is rejected at upload.

Image ad — App placement

  • Dimensions: exactly 208×208 px.
  • Format: PNG or JPG.
  • Max size: 1 MB.
  • Headline ≤ 20 characters, description ≤ 25, CTA ≤ 15.

Image ad — Call placement

  • Dimensions: exactly 300×250 px.
  • Format: PNG or JPG.
  • Max size: 1 MB.
  • Headline ≤ 25 characters, description ≤ 80, CTA ≤ 15.

Video ad

  • Dimensions: exactly 300×250 px.
  • Format: MP4 only.
  • Duration: up to 15 seconds.
  • Max size: 30 MB.
  • Headline ≤ 25 characters, description ≤ 80, CTA ≤ 15.

Message ad

  • Attached image (optional) — JPG / PNG / WEBP, up to 10 MB.
  • Body up to 1,000 characters, CTA ≤ 15.

If your file is the wrong size or wrong aspect ratio, the upload box will show the exact mismatch — fix it and try again.