import { PdfBitmap } from './interfaces';
export declare const FPDFBitmap_Unknown = 0;
export declare const FPDFBitmap_Gray = 1;
export declare const FPDFBitmap_BGR = 2;
export declare const FPDFBitmap_BGRx = 3;
export declare const FPDFBitmap_BGRA = 4;
export declare function create(width: number, height: number, alpha: number): PdfBitmap;
export declare function createEx(width: number, height: number, format: number, firstScan: Buffer, stride: number): PdfBitmap;
export declare function destroy(bitmap: PdfBitmap): void;
export declare function getBuffer(bitmap: PdfBitmap): Buffer;
export declare function getStride(bitmap: PdfBitmap): number;