/**
 * PDFKitRenderer
 *
 * Lightweight PDF renderer using PDFKit.
 * Direct PDF generation without HTML/CSS - programmatic API.
 *
 * **Supported Formats**: PDF only
 *
 * **Pros**:
 * - Very lightweight (~few MB vs ~200MB for Puppeteer)
 * - Fast
 * - No browser dependency
 * - Pure Node.js
 * - Good for programmatic PDFs
 *
 * **Cons**:
 * - No HTML/CSS support
 * - Manual layout required
 * - Limited text rendering
 * - Not suitable for complex documents
 *
 * **Best For**:
 * - Simple receipts
 * - Certificates
 * - Basic invoices
 * - Programmatically generated PDFs
 * - Server environments without browser
 */
import { type StorageRenderOptions, type StorageRenderResult, type StorageRendererHealthCheck } from '@plyaz/types/storage';
import { BaseRendererAdapter } from '../base/BaseRendererAdapter';
import type { StoragePDFKitRendererConfig } from '@plyaz/types/storage';
/**
 * PDFKitRenderer Adapter
 *
 * Lightweight PDF generation without browser dependency.
 *
 * @example
 * ```typescript
 * const renderer = new PDFKitRenderer({
 *   name: 'pdfkit-main',
 *   type: STORAGE_RENDERER_TYPE.PDFKIT,
 *   enabled: true,
 *   priority: 50,
 *   supportedFormats: [OUTPUT_FORMAT.PDF],
 * });
 *
 * const result = await renderer.render({
 *   format: OUTPUT_FORMAT.PDF,
 *   data: {
 *     title: 'Invoice',
 *     content: [
 *       { type: 'heading', data: 'Invoice #12345', options: { fontSize: 24 } },
 *       { type: 'text', data: 'Amount: $100.00', options: {} }
 *     ]
 *   }
 * });
 * ```
 */
export declare class PDFKitRenderer extends BaseRendererAdapter {
    private readonly defaultOptions;
    constructor(config: StoragePDFKitRendererConfig);
    /**
     * Render content
     */
    render(options: StorageRenderOptions): Promise<StorageRenderResult>;
    /**
     * Generate PDF using PDFKit
     * @private
     */
    private generatePDF;
    /**
     * Render a section of the document
     * @private
     */
    private renderSection;
    /**
     * Get document data from options
     * @private
     */
    private getDocumentData;
    /**
     * Get PDF options
     * @private
     */
    private getPDFOptions;
    /**
     * Parse margin string to number (e.g., "20mm" → 56.69)
     * @private
     */
    private parseMargin;
    /**
     * Check renderer health
     */
    checkHealth(): Promise<StorageRendererHealthCheck>;
}