How to Use the C2PA Viewer

Our C2PA Viewer is a powerful browser-based tool that analyzes digital images for embedded C2PA (Coalition for Content Provenance and Authenticity) metadata. All processing happens locally in your browser - no files are uploaded to our servers, ensuring complete privacy and security.

Getting Started

The C2PA Viewer is a web-based tool that requires no downloads or installations. Simply visit the verification page and start analyzing images immediately.

Step 1: Loading Your Image

Supported File Types

The C2PA Viewer currently supports standard image formats:

• JPEG/JPG: The most common format for C2PA-enabled content
• PNG: Supports C2PA data
• Other standard image formats as supported by your browser

How to Upload

You can analyze images in two ways:

• Browse Files: Click the "Browse Files" button to select an image from your device
• Try Sample Images: Use our pre-loaded sample images to see C2PA data in action

Step 2: Understanding the Results

Once you select an image, the C2PA Viewer will automatically analyze it and show you one of several possible outcomes:

✅ Valid C2PA Content

When the tool finds valid C2PA data, you'll see:

• A green success indicator confirming C2PA data was found
• Author information extracted from the digital certificate
• Software that was used to create or edit the image
• Any AI tools that were involved in creating the content
• A complete editing history showing all actions performed
• Thumbnail images from different stages of editing

❌ No C2PA Data Found

If no C2PA information is present, you'll see:

• A clear message that no C2PA data was detected
• Explanation of what this means for content authenticity
• Suggestions for testing with C2PA-enabled content

⚠️ Corrupted C2PA Data

Sometimes C2PA data exists but is corrupted or malformed:

• Warning indicator showing data corruption was detected
• Technical details about the specific error encountered
• Explanation of possible causes for the corruption

Step 3: Exploring the Data

When C2PA data is found, the viewer organizes the information into easy-to-understand sections:

Author Information

• Creator identity: The name or organization that signed the content
• Digital certificate: Link to view detailed certificate information

Software Used

• Complete list of software applications used to create or edit the image
• Automatically extracted from the C2PA manifest data

AI Detection

• Identification of any AI tools involved in content creation
• Clear labeling of AI-generated or AI-assisted content

Edit History

View the complete editing timeline with:

• Chronological list of all actions performed on the image
• Details about each editing step and the software used
• Icons indicating the type of action (creation, editing, etc.)

Thumbnails

• Visual representations of the image at different editing stages
• Scrollable gallery showing the image's evolution
• Navigation buttons to browse through multiple thumbnails

Advanced Features

Raw Manifest Data

For technical users, the viewer provides:

• Complete raw C2PA manifest in JSON format
• Collapsible section to view all technical details
• Formatted display with syntax highlighting

Real-time Processing

The tool provides live feedback during analysis:

• Progress indicators showing current analysis phase
• Detailed log of processing steps
• Real-time status updates as the C2PA library loads and processes data

Tips for Best Results

Troubleshooting

File Won't Load

• Ensure the file is a supported image format
• Check that the file isn't corrupted
• Try refreshing the page and selecting the file again

Processing Seems Slow

• Large images or complex C2PA data may take time to process
• Check the progress log to see current processing status
• Ensure you have a stable internet connection for library loading

Tool Won't Start

• Make sure you're using a modern browser with WebAssembly support
• Disable ad blockers that might interfere with CDN loading
• Check browser console for any JavaScript errors