import { OnInit } from '@angular/core';
import { Subject } from 'rxjs';
export declare class PDFViewerModalComponent implements OnInit {
    /**
     * Array of pdf sources to display
     */
    sources: {
        url: string;
        title: string;
    }[];
    /**
     * Object to update the modal's title dynamically
     */
    title: Subject<string>;
    currentPDF: number;
    fileExtension: string;
    allowedImageExtensions: string[];
    constructor();
    ngOnInit(): void;
    next(): void;
    prev(): void;
    setTitle(): void;
    setFileExtension(title: string): void;
}