import { Document } from "../types";
import { BaseDocumentLoader } from "./base";
export declare class PDFDocumentLoader extends BaseDocumentLoader {
    supportedExtensions: string[];
    load(filePath: string, content: Buffer): Promise<Document>;
    private extractWithPDFJS;
    private extractBasicText;
    private extractTitleFromFilename;
    private extractDescription;
}
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