/**
 * PDFDocEncoding mapping for bytes 128-159.
 * Bytes 0-127 are standard ASCII.
 * Bytes 128-159 have special Unicode mappings defined in PDF spec.
 * Bytes 160-255 match ISO Latin-1 (ISO 8859-1).
 *
 * This is the canonical source for PDFDocEncoding character mappings.
 */
export declare const PDF_DOC_ENCODING_TABLE: Record<number, string>;
/**
 * Reverse mapping from Unicode characters to PDFDocEncoding bytes (128-159).
 * Generated from PDF_DOC_ENCODING_TABLE.
 */
export declare const UNICODE_TO_PDF_DOC_ENCODING: Record<string, number>;
/**
 * Set of Unicode character codes that can be represented in PDFDocEncoding bytes 128-159.
 * Used for quick lookup when checking if a character needs UTF-16BE encoding.
 */
export declare const PDF_DOC_ENCODING_CHARS: Set<number>;