import { IBinaryData } from "n8n-workflow";
import { PDFPage } from "pdf-lib";
declare const isPDFDocument: (data: IBinaryData) => boolean;
interface DocCreateFieldConfig {
    page: number;
    value: string;
    options: {
        x: number;
        y: number;
        size: number | undefined;
        opacity: number | undefined;
        colorRed: number | undefined;
        colorGreen: number | undefined;
        colorBlue: number | undefined;
    };
}
declare const createField: (pdfPage: PDFPage, config: DocCreateFieldConfig) => void;
export { isPDFDocument, createField, DocCreateFieldConfig };