/**
 * Measure the width of a text string rendered in Helvetica at the given font size.
 * No kerning applied — matches the PDF output which uses simple (text) Tj operators.
 * PDF viewers may apply their own kerning when rendering, but our measurement must
 * match what we tell the viewer (individual glyph advances without kerning).
 */
export declare function measureHelveticaText(text: string, fontSize: number): number;
/**
 * Approximate the width of a single character rendered in Helvetica at the given font size.
 * Used for per-character width estimation in phase6 (TOC, page numbers).
 */
export declare function approxHelveticaCharWidth(char: string, fontSize: number): number;
//# sourceMappingURL=helvetica-widths.d.ts.map