import type { jsPDF as JsPdf } from 'jspdf';
export interface WorkPdfCjkFontRegistration {
    /** Logical PDF font family name registered with jsPDF. */
    family: string;
    /** Base64-encoded TrueType font bytes (no data: URI prefix). */
    base64: string;
    /** VFS file name passed to jsPDF addFileToVFS / addFont. */
    vfsName: string;
}
/**
 * Registers an optional host-supplied CJK TrueType face for Writer PDF export.
 * Without a registration, searchable vector text stays Latin/Latin-1 only.
 * Call {@link clearWorkPdfCjkFont} in tests after use.
 */
export declare function registerWorkPdfCjkFont(options: {
    data: ArrayBuffer | Uint8Array | string;
    family?: string;
    vfsName?: string;
}): WorkPdfCjkFontRegistration;
export declare function clearWorkPdfCjkFont(): void;
export declare function workPdfCjkFontRegistration(): WorkPdfCjkFontRegistration | null;
export declare function workPdfCjkFontRegistered(): boolean;
/**
 * Ensures the registered CJK face is present on a jsPDF document once.
 * Returns the family name when available, otherwise null.
 */
export declare function ensureWorkPdfCjkFontOnDocument(pdf: JsPdf): string | null;
export declare function workPdfTextNeedsCjkFont(text: string): boolean;