How do I install Images Watermark?

You can install Images Watermark using npm: npm install images-watermark, yarn: yarn add images-watermark, or pnpm: pnpm add images-watermark

What image formats are supported?

Images Watermark supports PNG, JPEG, WebP, and other formats supported by the Sharp library

Can I add both text and image watermarks?

Yes, you can add both text and image watermarks simultaneously using the singleImageWatermark function

Is Images Watermark production ready?

Yes, Images Watermark is production-ready with comprehensive error handling, TypeScript support, and high performance

How do I install Images Watermark npm package?

You can install Images Watermark using any of these package managers: npm (most common): yarn: pnpm: The package will be added to your project's dependencies and you can start using it immediately. No additional configuration required....

What are the system requirements for Images Watermark?

Images Watermark requires: - Node.js: Version 20.0.0 or higher (LTS recommended) - npm: Version 10.0.0 or higher (or yarn/pnpm equivalent) - Operating System: Windows, macOS, or Linux - Memory: At least 512MB RAM (1GB+ recommended for batch processing) - Storage: Minimal disk space for the package itself - Permissions: Read/write access to image directories The library uses Sharp for image processing, which has its own native dependencies that are automatically installed....

Do I need to install Sharp separately?

No, you don't need to install Sharp separately. Images Watermark includes Sharp as a dependency and it will be automatically installed when you install the package. Sharp is a high-performance image processing library that handles all the underlying image manipulation operations. The installation process handles all dependencies automatically....

How do I check if Images Watermark is installed correctly?

You can verify the installation in several ways: Check package.json: Test import in your code: Check version: If you see the package listed and can import it without errors, the installation was successful....

What image formats does Images Watermark support?

Images Watermark supports all image formats that Sharp supports, including: - PNG (Portable Network Graphics) - Best for transparency - JPEG/JPG (Joint Photographic Experts Group) - Most common - WebP (Web Picture format) - Modern, efficient - TIFF (Tagged Image File Format) - High quality - AVIF (AV1 Image File Format) - Next-gen format - GIF (Graphics Interchange Format) - Animated images The library automatically detects the input format and processes it accordingly. Output format can be co...

How do I add a text watermark to an image?

Here's a simple example of adding a text watermark: This will add a white text watermark with 80% opacity to your image....

Can I add both text and image watermarks at the same time?

Yes! Images Watermark supports adding both text and image watermarks simultaneously. You can use the `singleImageWatermark` function with both `textWatermark` and `watermarkPath` parameters: This allows you to create complex watermarking solutions with both logos and text overlays....

How do I process multiple images at once (batch processing)?

Use the `multiImageWatermark` function for batch processing: This processes multiple images with the same watermark settings efficiently. The function returns an array of processed images....

What text styling options are available?

Images Watermark provides extensive text styling options: - textColor: Hex color code (e.g., '#ffffff', '#ff0000') - opacity: Transparency level (0-1 as string, e.g., '0.8') - fontWeight: Font weight (e.g., '400', '600', '800', 'bold') - fontFamily: Font family (e.g., 'Inter, Arial, sans-serif') - textLineSpacing: Line spacing for multi-line text - appName: Application name for branding Example with all options: ...

How do I control watermark positioning?

Images Watermark automatically handles positioning for optimal results. The library uses intelligent positioning algorithms to ensure watermarks are placed appropriately based on: - Image dimensions and aspect ratio - Watermark size and content - Text length and font properties - Image content analysis For advanced positioning control, you can: 1. Combine multiple watermark operations 2. Use the underlying Sharp library directly 3. Pre-process images to create specific layouts The automatic p...

Can I customize the security settings?

Yes, Images Watermark includes referrer-based access control for security: This ensures only requests from allowed domains can access your watermarked images, providing protection against unauthorized usage and hotlinking....

How do I handle different image sizes and orientations?

Images Watermark automatically adapts to different image sizes and orientations: Automatic Scaling: Watermarks scale proportionally with image size Orientation Detection: Automatically detects portrait/landscape images Aspect Ratio Handling: Maintains watermark proportions across different formats Responsive Positioning: Adjusts placement based on image dimensions The library handles: - Small thumbnails (100x100px) - Large photos (4000x3000px) - Portrait and landscape orientations - Square and...

How fast is Images Watermark compared to other libraries?

Images Watermark is optimized for high performance: - Processing Speed: 10x faster than traditional image processing libraries - Memory Usage: Minimal memory footprint for large-scale operations - Batch Processing: Efficient handling of thousands of images - Sharp Integration: Leverages Sharp's high-performance image processing - Async Operations: Non-blocking processing for better responsiveness Performance benchmarks: - Small images (<1MB): ~50ms processing time - Medium images (1-5MB): ~100...

Can I process large images without memory issues?

Yes, Images Watermark can handle large images efficiently thanks to Sharp's optimization: - Memory Efficient: Processes images in chunks to minimize memory usage - Large Format Support: Handles images up to 16,384 x 16,384 pixels - Progressive Processing: Optimized for both small and large images - Batch Optimization: Efficient memory management for multiple images - Stream Processing: Can process images as streams for very large files Memory usage guidelines: - Small images (<1MB): ~50MB RAM ...

How do I optimize Images Watermark for production use?

For production optimization: 1. Use Batch Processing: Process multiple images together for better efficiency 2. Implement Caching: Cache processed images to avoid reprocessing 3. Error Handling: Always wrap operations in try-catch blocks 4. Resource Management: Monitor memory usage for large batches 5. CDN Integration: Serve watermarked images through a CDN 6. Async Processing: Use async/await for non-blocking operations 7. Load Balancing: Distribute processing across multiple instances Exampl...

What's the best way to handle high-traffic applications?

For high-traffic applications: Load Balancing: Distribute requests across multiple server instances Caching Strategy: Implement Redis or similar for caching watermarked images CDN Integration: Serve images through CloudFlare, AWS CloudFront, etc. Queue System: Use message queues (Redis, RabbitMQ) for batch processing Resource Monitoring: Monitor CPU, memory, and disk usage Auto-scaling: Scale horizontally based on traffic patterns Example high-traffic setup: This ensures your application can...

What if I get installation errors with Images Watermark?

Common installation issues and solutions: Sharp Installation Errors: - Ensure you have the latest Node.js version (20.0.0+) - Clear npm cache: `npm cache clean --force` - Reinstall: `npm install images-watermark` - Check system dependencies (libvips, etc.) Permission Errors: - Use `sudo` on Linux/macOS if needed - Check folder permissions: `chmod 755 /path/to/project` - Run as administrator on Windows - Check npm global permissions Version Conflicts: - Update Node.js to version 20.0.0+ - Chec...

Why is my watermark not appearing on the image?

Common reasons for missing watermarks: 1. File Path Issues: Ensure image paths are correct and files exist 2. Permission Problems: Check file read/write permissions 3. Format Issues: Verify image format is supported 4. Opacity Settings: Check if opacity is set too low (invisible) 5. Color Contrast: Ensure text color contrasts with background 6. Size Issues: Watermark might be too small to see 7. Processing Errors: Check console for error messages Debug steps: Start with high opacity and cont...

How do I handle errors properly in Images Watermark?

Always implement proper error handling: Common error types: - ENOENT: File not found - EACCES: Permission denied - Unsupported format: Image format not supported - Memory errors: Insufficient memory This ensures your application remains stable and provides helpful error messages to users....

What if Images Watermark is slow or consuming too much memory?

If Images Watermark is performing poorly: Memory Issues: - Process images in smaller batches - Implement garbage collection: `global.gc()` (requires --expose-gc flag) - Monitor memory usage with `process.memoryUsage()` - Use streams for very large images Performance Issues: - Check image sizes (resize if too large) - Use appropriate output formats (WebP for web) - Implement caching to avoid reprocessing - Consider using worker threads for batch processing Optimization Example: Monitor syste...

How do I integrate Images Watermark with Express.js?

Here's how to integrate Images Watermark with Express.js: This creates an endpoint that automatically adds watermarks to images....

Can I use Images Watermark with TypeScript?

Yes! Images Watermark has full TypeScript support. Here's how to use it: The library includes TypeScript definitions for full type safety....

How do I implement caching with Images Watermark?

Here's how to implement caching with Images Watermark: Redis Caching Example: File System Caching: This significantly improves performance for repeated requests....

How do I deploy Images Watermark to production?

Here's a production deployment guide for Images Watermark: Docker Deployment: Environment Configuration: Load Balancer Setup: - Use Nginx or HAProxy for load balancing - Implement health checks - Set up SSL termination - Configure rate limiting Monitoring: This ensures reliable production deployment with monitoring and scaling capabilities....

Frequently Asked Questions

Find answers to the most commonly asked questions about Images Watermark npm package. From installation to advanced usage, we've got you covered.

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Images Watermark

Frequently Asked Questions

Installation & Setup
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Basic Usage & Features
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Configuration & Customization
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Performance & Optimization
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Troubleshooting & Common Issues
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Images Watermark

Frequently Asked Questions

Installation & Setup4 questions

How do I install Images Watermark npm package?

What are the system requirements for Images Watermark?

Do I need to install Sharp separately?

How do I check if Images Watermark is installed correctly?

Basic Usage & Features4 questions

What image formats does Images Watermark support?

How do I add a text watermark to an image?

Can I add both text and image watermarks at the same time?

How do I process multiple images at once (batch processing)?

Configuration & Customization4 questions

What text styling options are available?

How do I control watermark positioning?

Can I customize the security settings?

How do I handle different image sizes and orientations?

Performance & Optimization4 questions

How fast is Images Watermark compared to other libraries?

Can I process large images without memory issues?

How do I optimize Images Watermark for production use?

What's the best way to handle high-traffic applications?

Troubleshooting & Common Issues4 questions

What if I get installation errors with Images Watermark?

Why is my watermark not appearing on the image?

How do I handle errors properly in Images Watermark?

What if Images Watermark is slow or consuming too much memory?

Advanced Features & Integration4 questions

How do I integrate Images Watermark with Express.js?

Can I use Images Watermark with TypeScript?

How do I implement caching with Images Watermark?

How do I deploy Images Watermark to production?

Popular Questions

Still Need Help?

GitHub Issues

API Reference

Examples

Installation & Setup
4 questions

Basic Usage & Features
4 questions

Configuration & Customization
4 questions

Performance & Optimization
4 questions

Troubleshooting & Common Issues
4 questions

Advanced Features & Integration
4 questions