Generate Mixed Media Creative

Combine a selected image variation with ad copy to create a complete, platform-ready advertising creative with text overlay.

Workflow

Step 1: Validate Inputs

Verify required inputs:

• selectedImage: Image variation with URL, dimensions, variation_id
• adCopy: Ad copy with headline, body_copy, cta
• platform: Target platform for formatting

Step 2: Determine Text Placement

Based on platform and image dimensions:

Step 3: Format Text Elements

Headline:

• Font size: 24-48px depending on platform
• Font weight: Bold
• Color: High contrast with image (white with shadow or dark)
• Position: Primary text zone

Body Copy:

• Font size: 14-20px
• Font weight: Regular
• Color: Match headline scheme
• Position: Below headline

CTA:

• Font size: 16-24px
• Style: Button or highlighted text
• Color: Accent color (platform brand or campaign color)
• Position: Bottom of text zone

Step 4: Generate Composite

Create the final composite by:

1. Loading source image at platform dimensions
2. Adding semi-transparent overlay in text zones if needed
3. Rendering headline, body copy, and CTA
4. Exporting as PNG (lossless) or JPEG (optimized)

Step 5: Return JSON Output

Return this structure:

{ “generated_at”: “ISO timestamp”, “composite_image_url”: “URL of final composite”, “thumbnail_url”: “thumbnail URL or null”, “mime_type”: “image/png or image/jpeg”, “platform”: “target platform”, “dimensions”: { “width”: 1080, “height”: 1920 }, “source_image_variation”: “A or B”, “ad_copy_used”: { “headline”: “headline text”, “body_copy”: “body copy text”, “cta”: “CTA text” } }

Platform-Specific Guidelines

TikTok

• Bold, attention-grabbing headlines
• Short body copy (1-2 lines)
• Energetic CTA (“Try Now!”, “Get Started!”)
• Vertical format with text at top/bottom

Instagram

• Aesthetic, clean typography
• Moderate body copy length
• Lifestyle-oriented CTA (“Shop Now”, “Learn More”)
• Square or vertical format

Facebook

• Clear, informative headlines
• Longer body copy acceptable
• Direct CTA (“Sign Up”, “Get Offer”)
• Landscape format with left-aligned text

LinkedIn

• Professional, credible headlines
• Business-focused body copy
• Professional CTA (“Request Demo”, “Download Report”)
• Landscape format with clean layout

Important Notes

• Ensure text is readable against image background
• Use text shadows or overlays for contrast
• Respect platform safe zones for interactive elements
• Maintain brand consistency in typography
• Export at platform-native resolution
• Include both PNG and JPEG options when possible