import type { PngPageOutput } from './interfaces/index.js';
import type { NormalizedPdfToPngOptions } from './normalizePdfToPngOptions.js';
/**
 * Internal conversion entry point that bypasses the public-API normalization step.
 *
 * Callers — currently the public `pdfToPng()` wrapper and the CLI — are responsible for
 * producing a fully-validated `NormalizedPdfToPngOptions` (via `normalizePdfToPngOptions`)
 * before invoking this function. The single-normalize contract is what makes
 * `NormalizedPdfToPngOptions` the sole validation boundary of the library.
 *
 * This module is NOT re-exported from `src/index.ts`; it is an internal seam.
 */
export declare function pdfToPngCore(pdfFile: string | ArrayBufferLike | Uint8Array, normalizedProps: NormalizedPdfToPngOptions): Promise<PngPageOutput[]>;