Duply
← Image automation guides

Personalization API

Personalized Image Generation API

Generate one-to-one images from customer, account, event, or offer data within a controlled branded template.

Quick answer

A personalized image API should limit personalization to useful, validated fields and generate a stable asset before the message or product experience needs it.

Best-fit use cases

Lifecycle email
Account summaries
Sales outreach
Milestones and certificates

Implementation

A reliable four-step workflow

1

Choose safe fields

Personalize values with clear relevance, consent, and predictable display lengths.

2

Lock the brand

Keep logos, layout, typography, and required legal content outside dynamic control.

3

Generate ahead

Create and cache the image before send or page-load time when possible.

4

Protect the message

Keep essential information in accessible HTML or text outside the image.

Concrete example
trigger
A customer reaches a milestone
inputs
First name, achievement, date, account metric
output
A personalized celebration image
destination
Lifecycle email and account activity

Frequently asked questions

Can each recipient receive a unique image?

Yes. Generate stable outputs ahead of delivery and monitor volume, privacy, and failure handling.

Should sensitive data appear in a generated image?

Avoid sensitive personal data unless the use case, storage, access controls, and consent explicitly support it.

Continue the workflow

Automate personalized email images →Personalized images at scale →Create images with an API →

Build one production-shaped example

Start with one approved template, realistic data, and the exact trigger your team intends to use.

Start free