/**
 * Configuration constants for PDF decomposition
 */
export declare const PDF_CONFIG: {
    readonly MAX_CANVAS_WIDTH: 4096;
    readonly MAX_CANVAS_HEIGHT: 4096;
    readonly DEFAULT_MAX_WIDTH: 1024;
    readonly MEMORY_SAFE_PAGE_LIMIT: 50;
    readonly GC_INTERVAL_PAGES: 10;
    readonly JPEG_QUALITY: {
        readonly HIGH: 85;
        readonly MEDIUM: 60;
        readonly LOW: 40;
        readonly DEFAULT: 60;
    };
    readonly PNG_QUALITY: {
        readonly HIGH: 95;
        readonly MEDIUM: 90;
        readonly LOW: 80;
        readonly DEFAULT: 90;
    };
    readonly THUMBNAIL: {
        readonly MAX_WIDTH: 200;
        readonly SCALE_FACTOR: 0.2;
        readonly QUALITY: 50;
    };
    readonly MAX_FILE_SIZE: number;
    readonly ERRORS: {
        readonly INVALID_FILE_PATH: "File path must be a non-empty string";
        readonly FILE_NOT_FOUND: "PDF file not found";
        readonly FILE_TOO_LARGE: "PDF file is too large";
        readonly INVALID_PAGE_NUMBER: "Page number must be a positive integer";
        readonly MEMORY_ERROR: "Insufficient memory for operation";
        readonly INVALID_PDF: "Invalid or corrupted PDF file";
        readonly PROCESSING_FAILED: "PDF processing failed";
    };
};
/**
 * Environment-specific configuration
 */
export declare const ENV_CONFIG: {
    readonly isLowMemory: boolean;
    readonly isDebug: boolean;
    readonly maxConcurrentPages: number;
    readonly preferWebP: boolean;
    readonly logLevel: string;
};
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