import { BaseDocumentLoader } from '@langchain/core/document_loaders/base';
import { Document as BaseDocument } from 'langchain/document';
interface PDFMetadata {
    [key: string]: any;
}
export declare class BrowserPDFLoader extends BaseDocumentLoader {
    private file;
    private metadata;
    constructor(file: string | File, metadata?: PDFMetadata);
    load(): Promise<BaseDocument[]>;
}
export {};