Asset Production Pipeline — Hero Image to Multi-Channel Export

What It Does

This n8n workflow takes a single hero image and automatically exports it into production-ready assets for every channel — Instagram, Facebook, web banners, retail POS, email headers, and print. Smart cropping, color space conversion, brand overlay application, and automated naming conventions — all in one pipeline.

Key Features

• Multi-Channel Export — One hero image becomes 10+ production-ready variants across Instagram (1080×1080, 1080×1350), Facebook Ads (1200×628), Web Banners (1920×600, 728×90), Retail POS (A3/A4 CMYK with bleed), and Email Headers (600×300)
• Smart Cropping — Gravity-center crop ensures the focal point stays centered across every aspect ratio from 1:1 to 8:1
• Color Space Conversion — Automatically converts sRGB to CMYK for print-ready retail and packaging assets
• Quality Validation — Each export is validated for file size limits, resolution, and format compliance per channel spec
• Automated Naming — Campaign-aware file naming: campaign_product_channel_WxH_v1.format
• Batch Processing — Feed it an entire campaign folder and export all variants at once

How It Works

Webhook receives a hero image URL and channel list → Downloads and analyzes the source image → Generates channel-specific variants with correct dimensions, aspect ratios, and color spaces → Validates each export → Logs everything to Google Sheets → Notifies the design team on Slack with a full export summary.

Channels Supported

• Instagram Feed — 1080×1080 (1:1) + 1080×1350 (4:5), sRGB, max 30MB
• Instagram Stories — 1080×1920 (9:16), sRGB, max 30MB
• Facebook Ads — 1200×628 (1.91:1), sRGB, max 30MB
• Web Banners — 1920×600 hero + 728×90 leaderboard, sRGB
• Retail POS — A3 + A4 portrait, CMYK with 3mm bleed, TIFF
• Email Headers — 600×300 (2:1), sRGB, max 200KB

Tech Stack

n8n workflow automation, ImageMagick (resize, crop, color space conversion), Google Sheets API, Slack API, webhook-driven architecture.

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