Function isJpegFile

src/parsers/imageZipExport.ts:13–18

(file: File)

export type ImageFetchFunction = (imageName: string) => Promise<File | null>;

export function isJpegFile(file: File): boolean {
  const type = file.type.toLowerCase();
  if (type === 'image/jpeg' || type === 'image/jpg') return true;
  const name = file.name.toLowerCase();
  return name.endsWith('.jpg') || name.endsWith('.jpeg');
}

export async function convertToJpeg(file: File, quality: number): Promise<Blob> {
  const effectiveQuality = isJpegFile(file) ? Math.min(quality, 0.85) : quality;