import type { Chunk, ChunkOptions } from "./types.js";
/**
 * Split a PDF file into segments of `pdfPages` pages each.
 *
 * Uses `pdf-lib` to read the source PDF, copy page subsets into new
 * PDFDocuments, and serialize each segment to bytes.
 *
 * If the PDF has fewer pages than `pdfPages`, returns a single chunk
 * with label "full".
 */
export declare function chunkPdf(filePath: string, opts?: ChunkOptions): Promise<Chunk[]>;
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