import { PDFPrintRange } from './options/pdf-print-range';
export interface FindOptions {
    highlightAll?: boolean;
    matchCase?: boolean;
    wholeWords?: boolean;
    ignoreAccents?: boolean;
    findMultipleSearchTexts?: boolean;
    fuzzySearch?: boolean;
}
export interface PDFExportScaleFactor {
    width?: number;
    height?: number;
    scale?: number;
}
export declare class NgxExtendedPdfViewerService {
    constructor();
    findMultiple(text: Array<string>, options?: FindOptions): boolean;
    find(text: string, options?: FindOptions): boolean;
    findNext(): boolean;
    findPrevious(): boolean;
    print(printRange?: PDFPrintRange): void;
    removePrintRange(): void;
    setPrintRange(printRange: PDFPrintRange): void;
    filteredPageCount(pageCount: number, range: PDFPrintRange): number;
    isInPDFPrintRange(pageIndex: number, printRange: PDFPrintRange): boolean;
    getPageAsText(pageNumber: number): Promise<string>;
    private convertTextInfoToText;
    getPageAsImage(pageNumber: number, scale: PDFExportScaleFactor): Promise<any>;
    private draw;
    private getPageDrawContext;
    getCurrentDocumentAsBlob(): Promise<Blob>;
    getFormData(): Promise<Array<Object>>;
    /**
     * Adds a page to the rendering queue
     * @param {number} pageIndex Index of the page to render
     * @returns {boolean} false, if the page has already been rendered
     * or if it's out of range
     */
    addPageToRenderQueue(pageIndex: number): boolean;
    isRenderQueueEmpty(): boolean;
    hasPageBeenRendered(pageIndex: number): boolean;
    currentlyRenderedPages(): Array<number>;
    numberOfPages(): number;
    getCurrentlyVisiblePageNumbers(): Array<number>;
}