// Replace the license key variable with the trial key you obtained
// For enterprise deployments, store this in secure configuration management
IronWord.License.LicenseKey = System.Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY") 
    ?? throw new InvalidOperationException("IronWord license key not configured");

// Replace the license key variable with the trial key you obtained
// For enterprise deployments, store this in secure configuration management
IronWord.License.LicenseKey = System.Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY") 
    ?? throw new InvalidOperationException("IronWord license key not configured");

using IronWord;
using IronWord.Models;
using IronWord.Models.Enums;
using System;
using System.IO;
using Microsoft.Extensions.Logging;

public class EnterpriseWatermarkService
{
    private readonly ILogger<EnterpriseWatermarkService> _logger;
    
    public EnterpriseWatermarkService(ILogger<EnterpriseWatermarkService> logger)
    {
        _logger = logger;
        // Set the license key from secure configuration
        IronWord.License.LicenseKey = Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY");
    }
    
    public void AddWatermarkToDocument(string outputPath, string watermarkImagePath)
    {
        try
        {
            // Validate input paths for security
            if (!File.Exists(watermarkImagePath))
            {
                throw new FileNotFoundException($"Watermark image not found: {watermarkImagePath}");
            }
            
            // Create a new Word document with audit metadata
            WordDocument doc = new WordDocument();
            
            // Add document properties for compliance tracking
            doc.Properties.Author = "Enterprise Document Service";
            doc.Properties.LastModifiedBy = Environment.UserName;
            doc.Properties.CreationDate = DateTime.UtcNow;
            
            // Load the image to be used as a watermark
            IronWord.Models.Image image = new IronWord.Models.Image(watermarkImagePath);
            
            // Set the width and height of the image for optimal visibility
            image.Width = 500; // In pixels - configurable per enterprise standards
            image.Height = 250; // In pixels - maintains aspect ratio
            
            // Add transparency for professional appearance
            // Note: IronWord applies appropriate transparency automatically
            
            // Add the image as a watermark to the document
            doc.AddImage(image);
            
            // Save the document with encryption if required by policy
            doc.SaveAs(outputPath);
            
            _logger.LogInformation("Watermark applied successfully to {OutputPath}", outputPath);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to apply watermark to document");
            throw; // Re-throw for proper error handling upstream
        }
    }
}

using IronWord;
using IronWord.Models;
using IronWord.Models.Enums;
using System;
using System.IO;
using Microsoft.Extensions.Logging;

public class EnterpriseWatermarkService
{
    private readonly ILogger<EnterpriseWatermarkService> _logger;
    
    public EnterpriseWatermarkService(ILogger<EnterpriseWatermarkService> logger)
    {
        _logger = logger;
        // Set the license key from secure configuration
        IronWord.License.LicenseKey = Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY");
    }
    
    public void AddWatermarkToDocument(string outputPath, string watermarkImagePath)
    {
        try
        {
            // Validate input paths for security
            if (!File.Exists(watermarkImagePath))
            {
                throw new FileNotFoundException($"Watermark image not found: {watermarkImagePath}");
            }
            
            // Create a new Word document with audit metadata
            WordDocument doc = new WordDocument();
            
            // Add document properties for compliance tracking
            doc.Properties.Author = "Enterprise Document Service";
            doc.Properties.LastModifiedBy = Environment.UserName;
            doc.Properties.CreationDate = DateTime.UtcNow;
            
            // Load the image to be used as a watermark
            IronWord.Models.Image image = new IronWord.Models.Image(watermarkImagePath);
            
            // Set the width and height of the image for optimal visibility
            image.Width = 500; // In pixels - configurable per enterprise standards
            image.Height = 250; // In pixels - maintains aspect ratio
            
            // Add transparency for professional appearance
            // Note: IronWord applies appropriate transparency automatically
            
            // Add the image as a watermark to the document
            doc.AddImage(image);
            
            // Save the document with encryption if required by policy
            doc.SaveAs(outputPath);
            
            _logger.LogInformation("Watermark applied successfully to {OutputPath}", outputPath);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Failed to apply watermark to document");
            throw; // Re-throw for proper error handling upstream
        }
    }
}

// Set the image to wrap behind the text for optimal readability
image.WrapText = WrapText.BehindText;

// Additional enterprise configurations
image.Transparency = 0.3f; // 30% transparency for subtle watermarking
image.Rotation = -45; // Diagonal watermark for added security

// Set the image to wrap behind the text for optimal readability
image.WrapText = WrapText.BehindText;

// Additional enterprise configurations
image.Transparency = 0.3f; // 30% transparency for subtle watermarking
image.Rotation = -45; // Diagonal watermark for added security

using IronWord;
using IronWord.Models;

public class AdvancedWatermarkConfiguration
{
    public void ConfigureEnterpriseWatermark(WordDocument doc, string watermarkPath)
    {
        // Set the license key from secure storage
        IronWord.License.LicenseKey = GetSecureLicenseKey();
        
        // Load the image to be used as a watermark
        IronWord.Models.Image image = new IronWord.Models.Image(watermarkPath);
        
        // Create an ElementPosition object for precise placement
        ElementPosition elementPosition = new ElementPosition();
        
        // Center the watermark for maximum visibility
        elementPosition.SetXPosition(doc.PageWidth / 2 - 25); // Center horizontally
        elementPosition.SetYPosition(doc.PageHeight / 2 - 25); // Center vertically
        
        // Set appropriate dimensions for corporate watermarks
        image.Width = 50; // In pixels - adjust based on document type
        image.Height = 50; // In pixels - maintain aspect ratio
        
        // Set the image position using the ElementPosition object
        image.Position = elementPosition;
        
        // Configure margins to ensure watermark doesn't interfere with headers/footers
        image.DistanceFromTop = 100;    // Comply with corporate header standards
        image.DistanceFromBottom = 100; // Maintain footer space
        image.DistanceFromLeft = 100;   // Respect margin requirements
        image.DistanceFromRight = 100;  // Ensure print compatibility
        
        // Apply additional security features
        image.WrapText = WrapText.BehindText;
        image.AllowOverlap = false; // Prevent watermark stacking
        
        // Add the configured watermark
        doc.AddImage(image);
    }
    
    private string GetSecureLicenseKey()
    {
        // Implement secure key retrieval from Azure Key Vault, 
        // AWS Secrets Manager, or enterprise configuration service
        return Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY");
    }
}

using IronWord;
using IronWord.Models;

public class AdvancedWatermarkConfiguration
{
    public void ConfigureEnterpriseWatermark(WordDocument doc, string watermarkPath)
    {
        // Set the license key from secure storage
        IronWord.License.LicenseKey = GetSecureLicenseKey();
        
        // Load the image to be used as a watermark
        IronWord.Models.Image image = new IronWord.Models.Image(watermarkPath);
        
        // Create an ElementPosition object for precise placement
        ElementPosition elementPosition = new ElementPosition();
        
        // Center the watermark for maximum visibility
        elementPosition.SetXPosition(doc.PageWidth / 2 - 25); // Center horizontally
        elementPosition.SetYPosition(doc.PageHeight / 2 - 25); // Center vertically
        
        // Set appropriate dimensions for corporate watermarks
        image.Width = 50; // In pixels - adjust based on document type
        image.Height = 50; // In pixels - maintain aspect ratio
        
        // Set the image position using the ElementPosition object
        image.Position = elementPosition;
        
        // Configure margins to ensure watermark doesn't interfere with headers/footers
        image.DistanceFromTop = 100;    // Comply with corporate header standards
        image.DistanceFromBottom = 100; // Maintain footer space
        image.DistanceFromLeft = 100;   // Respect margin requirements
        image.DistanceFromRight = 100;  // Ensure print compatibility
        
        // Apply additional security features
        image.WrapText = WrapText.BehindText;
        image.AllowOverlap = false; // Prevent watermark stacking
        
        // Add the configured watermark
        doc.AddImage(image);
    }
    
    private string GetSecureLicenseKey()
    {
        // Implement secure key retrieval from Azure Key Vault, 
        // AWS Secrets Manager, or enterprise configuration service
        return Environment.GetEnvironmentVariable("IRONWORD_LICENSE_KEY");
    }
}