Gamma Migration Deep Dive

Contents

• Overview
• Prerequisites
• Instructions
• Output
• Error Handling
• Examples
• Resources

Overview

Comprehensive guide for migrating presentations and workflows from PowerPoint, Google Slides, Canva, and other platforms to Gamma with validation and rollback support.

Prerequisites

• Gamma API access
• Source platform export capabilities
• Node.js 18+ for migration scripts
• Sufficient Gamma storage quota

Instructions

Step 1: Inventory Source Presentations

Scan source directories for .pptx, .pdf, and .key files. Generate a JSON inventory with metadata (title, size, source platform, last modified).

Step 2: Build Migration Engine

Create a migration engine with concurrent batch processing, retry logic, and progress reporting. Use PQueue for concurrency control.

Step 3: Handle Platform-Specific Exports

• Google Slides: Export via Drive API as .pptx, then import to Gamma
• PowerPoint: Extract metadata from docProps/core.xml before import
• Canva/Keynote: Export as .pptx first, then import

Step 4: Validate Migrated Presentations

Verify each migrated presentation has slides, all assets loaded, and can export.

Step 5: Create Rollback Snapshots

Save source-to-Gamma ID mappings as snapshots. If migration fails, delete Gamma copies.

See detailed implementation for advanced patterns.

Output

• Migration inventory JSON
• Batch migration with concurrency control
• Platform-specific import handlers
• Validation and rollback support

Error Handling

Examples

Supported Migration Paths

Migration Checklist

• Inventory all source presentations
• Test import with sample files
• Run migration in batches
• Validate each batch
• Update links and references

Resources

• Gamma Import Formats
• Migration Best Practices