import type { IActivityHandler } from "../../IActivityHandler";
/** Defines inputs to the MergePdfs activity. */
export interface MergePdfsInputs {
    sources: string[] | number[][] | any[];
}
/** Defines outputs from the MergePdfs activity. */
export interface MergePdfsOutputs {
    /** @description The merged PDF document. */
    result: number[];
    /** @description The total number of pages in the merged PDF document. */
    totalPages: number;
}
export declare class MergePdfs implements IActivityHandler {
    static readonly action = "gcx:wf:pdf::MergePdfs";
    static readonly suite = "gcx:wf:builtin";
    execute(inputs: MergePdfsInputs): MergePdfsOutputs;
}