/**
 * pptxtojson 2.2+ emits embedded fonts as `{ name, fontFamily, blob }`,
 * not `string[]`. String APIs (`replace`, Google Fonts) must go through
 * {@link normalizePptxUsedFonts}; blob URLs must be registered as FontFace
 * so import does not crash and the packaged face actually paints.
 */
export type PptxUsedFontObject = {
    name?: string;
    fontFamily?: string;
    blob?: string;
};
export type PptxUsedFont = string | PptxUsedFontObject;
export type NormalizedPptxFont = {
    name: string;
    blob?: string;
};
/** Pull a CSS family name out of a pptxtojson usedFonts entry (string or object). */
export declare function pptxUsedFontName(font: unknown): string;
export declare function normalizePptxUsedFonts(usedFonts: readonly unknown[] | null | undefined): NormalizedPptxFont[];
/**
 * Split "Brygada 1918 Bold Italic" → family + FontFace descriptors so both
 * `font-family: "Brygada 1918 Bold"` and `font-family: "Brygada 1918"; font-weight: 700`
 * resolve to the embedded face.
 */
export declare function splitImportedFontFace(name: string): {
    family: string;
    weight?: string;
    style?: string;
};
/**
 * Register pptxtojson embedded-font blob URLs as FontFace. Safe in Node
 * (no `document` / `FontFace`) and idempotent.
 */
export declare function registerEmbeddedFonts(usedFonts: readonly unknown[] | null | undefined): string[];