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Overview

Supapost’s slide system lets you create TikTok-ready slideshows either manually through the visual editor or automatically with AI.

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AI Generation

Send a text prompt and the AI agent will:
  1. Create slides with gradient backgrounds
  2. Generate AI images for each slide background (via FAL FLUX)
  3. Add text layers with proper positioning and styling
curl -X POST https://api.supapost.so/generate/slides \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "5 slides about productivity tips, minimal style"}'

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Canvas Dimensions

All slides use a 1080 x 1920px canvas (9:16 portrait), optimized for TikTok and Instagram Reels.

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Export

Slides can be exported as:
  • JPEG — For publishing to social media
  • PNG — For download and manual use
The export system renders each slide to a canvas element, including all layers (text, images, shapes, drawings), and uploads the result to R2 storage.