import { ElementRef, EventEmitter, OnInit } from '@angular/core';
import 'pdfjs-dist/build/pdf.combined';
import 'pdfjs-dist/web/pdf_viewer';
export declare class ZoomConstants {
    static readonly Auto: Zoom;
    static readonly PageActual: Zoom;
    static readonly PageWidth: Zoom;
    static readonly PageHeight: Zoom;
    static readonly PageFit: Zoom;
}
export declare type Zoom = number | 'auto' | 'page-actual' | 'page-width' | 'page-height' | 'page-fit';
export declare class PdfViewerComponent implements OnInit {
    private element;
    private _showAll;
    private _src;
    private _page;
    private _zoom;
    private _pdfViewer;
    private _pdfDocument;
    afterLoadComplete: EventEmitter<any>;
    pageChange: EventEmitter<number>;
    zoomChange: EventEmitter<number>;
    src: any;
    page: any;
    zoom: any;
    constructor(element: ElementRef);
    ngOnInit(): void;
    private onPagesInit();
    private onScaleChange();
    private loadDocument();
    private refreshPdfViewer();
    private isValidPageNumber(page);
}