Free tool

Certificate of authenticity generator

Create a professional certificate of authenticity for your ACEO. Fill in your details, preview it live, and download a print-ready 2.5"x3.5" PNG sized to sit alongside your card.

Your details

Artist nameArtwork title

MediumYear

Edition type

Social handle (optional)Font theme

Preview

Actual size is 2.5"x3.5". Fits behind your ACEO inside a standard toploader.

Certificate of

Authenticity

Title

Untitled ACEO

Artist

an ACEO Website

Medium

Ink & Watercolor

Year

2026

Edition

Original ACEO

Artist Signature

@sketchstacks

Why a COA

A certificate of authenticity adds credibility to your work, reassures buyers that they are receiving an original piece, and helps establish provenance for your art. Many serious ACEO collectors expect one with every original purchase.

How to use

Fill in your name, artwork title, medium, edition info, and year. The preview updates live. Download and print it alongside your ACEO, or include it as a digital file when selling online.