I automated my LinkedIn carousels using n8n and a custom Design-Logic API. No more Canva.

I’m a developer and I got tired of the 'manual grind' of creating infographics for my side projects. I built a headless design engine (GraphyCards) that handles visual hierarchy via API.

The Stack:

• n8n: Handles the trigger (Webhook/URL) and the LinkedIn OAuth.
• GraphyCards API: Takes the URL/Topic/Content/PDF -> Returns Base64 PNG/PDF via a Job ID/Polling system (~45s render).
• LinkedIn API: Posts the final asset.

I’ve finally reached a point where I just paste a URL/Topic/Content/PDF in a Slack channel and it goes live on LinkedIn 60 seconds later.

If any fellow n8n users want the .json blueprint for this workflow to test it out - i've attached the github link, let me know your thoughts about this in the comment

https://github.com/SarbudeenDeveloper/N8N-workflow/blob/main/Linkedin-post-carousel-and-infographics/Linkedin-post-infographic.json

https://reddit.com/link/1saedvm/video/zet36lm7frsg1/player