import { ByteArray } from '../../types.js';
import { PdfToken } from '../tokens/token.js';
import { PdfObject } from './pdf-object.js';
export declare class PdfString extends PdfObject {
    /**
     * The raw bytes of the PDF string.
     */
    private _raw;
    /**
     * Original bytes from the PDF file, including parentheses and escape sequences.
     * Used to preserve exact formatting for incremental updates.
     */
    private _originalBytes?;
    constructor(raw: ByteArray | string, originalBytes?: ByteArray);
    get raw(): ByteArray;
    set raw(raw: ByteArray);
    /**
     * Checks if this string is UTF-16BE encoded (has UTF-16BE BOM).
     * UTF-16BE strings start with the byte order mark 0xFE 0xFF.
     */
    get isUTF16BE(): boolean;
    set value(str: string);
    get value(): string;
    get isTrailingDelimited(): boolean;
    protected tokenize(): PdfToken[];
    cloneImpl(): this;
    toJSON(): {
        type: string;
        value: string;
    };
    trim(): string;
    get length(): number;
}