export type BeforeDraw = (context: CanvasRenderingContext2D, canvas: HTMLCanvasElement) => void;
export interface CompressorOptions {
    quality?: number;
    maxWidth?: number;
    maxHeight?: number;
    mimeType?: string;
    beforeDraw?: BeforeDraw;
    success?: (result: Blob | File) => void;
    error?: (error: Error) => void;
    [key: string]: any;
}
export declare class Compressor {
    private file;
    private options;
    private image;
    private aborted;
    private reader?;
    constructor(file: File, options?: CompressorOptions);
    private init;
    private load;
    private compress;
    abort(): void;
    private fail;
}