1
Send a JSON payload
POST to the template endpoint with the values you want rendered. Authenticate with your API key.
Linkedin Post Image Generator API
Polished share images sized for LinkedIn feed posts
Use cases for the Linkedin Post Image Generator API
The LinkedIn Post Image template is the shortest path to a working linkedin post image generator api from your stack. Send a small JSON payload, get back a tested PNG that fits your brand. No browser, no headless Chrome wrangling, no design tooling on your side.
Common reasons people reach for this template:
- Long-form post hero images
- Newsletter share cards
- Webinar and event announcements
How it works
2
We render the image
The template is rendered server-side as a 1200x630 PNG (or whatever dimensions the template defines).
3
You get back a URL
The response includes a CDN URL for the PNG. Cache it, embed it, attach it to a tweet, anything you need.
Quick example
A single cURL call to render a LinkedIn Post Image as a PNG:
curl -X POST https://app.html2img.com/api/v1/templates/linkedin-post \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"title":"Five lessons from scaling a B2B SaaS to $10M ARR","subtitle":"What I would have done differently in years one through three.","eyebrow":"GROWTH PLAYBOOK","author_name":"Priya Natarajan","author_role":"CEO, Northwind Labs","author_avatar_url":"https://i.pravatar.cc/160?img=47","background_color":"#FFFFFF","accent_color":"#0A66C2"}'For the full PHP, Node and Python equivalents, plus every input the template accepts, see the LinkedIn Post Image API reference. Setting up your key is covered in the authentication guide.
Inputs at a glance
A quick summary of what the LinkedIn Post Image template accepts. The full reference, including example values and array shapes, is in the docs.
| Name | Type | Required |
|---|---|---|
| title | string | Required |
| subtitle | string | Optional |
| eyebrow | string | Optional |
| author_name | string | Optional |
| author_role | string | Optional |
| author_avatar_url | url | Optional |
| logo_url | url | Optional |
| background_color | string | Optional |
| accent_color | string | Optional |
See the full inputs reference for descriptions, examples and validation rules.
Related templates
Ready to render your first LinkedIn Post Image?
Sign up free, grab an API key, send a payload. The pricing page covers the higher-volume plans if you outgrow the free tier.