export type PDFPageProxy = import('pdfjs-dist/types/src/display/api').PDFPageProxy;
export type PDFSource = import('pdfjs-dist/types/src/display/api').DocumentInitParameters;
export type PDFDocumentProxy = import('pdfjs-dist/types/src/display/api').PDFDocumentProxy;
export type PDFDocumentLoadingTask = import('pdfjs-dist/types/src/display/api').PDFDocumentLoadingTask;
export type PDFViewerOptions = import('pdfjs-dist/types/web/pdf_viewer').PDFViewerOptions;
export interface PDFProgressData {
    loaded: number;
    total: number;
}
export type ZoomScale = 'page-height' | 'page-fit' | 'page-width';