import { CommonConversionData, ConvertDataToWorkerHandler, ImageOutput, WorkerConfiguration, LogLevel, ConvertPageData, ProgressData } from './interfaces';
declare function prepareConversion(commonConversionData: CommonConversionData): {
    pagesToConvert: number[];
    padNumber: number;
    pageName: string;
};
declare function convertPages(convertData: ConvertPageData): Promise<ImageOutput[]>;
/**
 * Notify the progress to the users with one indexed page numbers for UI/UX purposes.
 */
declare function notifyCallbackWithProgress(pageIndex: number, pageNumber: number, allPages: number[], progressCallback?: (data: ProgressData) => any): void;
declare function writeFile(imageMask: string | null, pngImage: Uint8Array): Promise<void>;
declare function getPageName(fileName: string | null, imageFileName?: string): string;
declare function handleConversion(generalConvertData: ConvertDataToWorkerHandler, configuration: WorkerConfiguration, log: LogLevel | undefined): Promise<ImageOutput[]>;
/**
 * Split pages to convert into chunks for each worker.
 */
declare function splitPagesPerWorker(pages: number[], maxWorkerThreads: number, minPagesPerWorker: number): {
    workerCount: number;
    pagesPerWorkers: number[][];
};
declare function getPagesToBeConverted(pages: number[], totalPdfPages: number): number[];
declare function logger(currentLevel: LogLevel | undefined, level: LogLevel, message: string, meta?: unknown): void;
declare function createOutputDirectory(outputFolderName?: string): Promise<void>;
/**
 * value - 1 because pages start at 0.
 */
declare function countPadForImageNameOnDisk(value: number): number;
declare function differentialToTwoDigits(end: number, start: number): string;
export { writeFile, convertPages, getPageName, prepareConversion, splitPagesPerWorker, handleConversion, getPagesToBeConverted, logger, countPadForImageNameOnDisk, createOutputDirectory, differentialToTwoDigits, notifyCallbackWithProgress, };
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