import type { DocumentConversionResult } from './document.types.js';
/**
 * Service for converting various document formats to markdown using docling CLI
 */
export declare class DocumentConverterService {
    private conversionTimeout;
    private outputDir;
    constructor(options?: {
        outputDir?: string;
        conversionTimeout?: number;
    });
    /**
     * Convert a document to markdown
     */
    convertDocument(filePath: string): Promise<DocumentConversionResult>;
    /**
     * Execute docling CLI command with timeout
     */
    private executeDoclingCLI;
    /**
     * Fallback to simple text extraction when conversion fails
     */
    private fallbackTextExtraction;
    /**
     * Detect document type by file extension
     */
    private detectDocumentType;
    /**
     * Get list of supported document formats
     */
    getSupportedFormats(): string[];
    /**
     * Count words in text
     */
    private countWords;
}
//# sourceMappingURL=document-converter.service.d.ts.map