import { PdfDefaultResourcesDictionary } from '../../annotations/pdf-default-resources.js';
import type { PdfObjectReference } from '../../core/objects/pdf-object-reference.js';
/**
 * Field types for AcroForm fields
 */
export declare const PdfFieldType: {
    readonly Text: "Tx";
    readonly Button: "Btn";
    readonly Choice: "Ch";
    readonly Signature: "Sig";
};
export type PdfFieldType = keyof typeof PdfFieldType;
/**
 * Interface that PdfAcroForm implements, used by PdfFormField to avoid circular imports.
 * Uses generic field type to avoid circular dependency.
 */
export interface FormContext<TField = any> {
    defaultResources: PdfDefaultResourcesDictionary | null;
    defaultAppearance: string | null;
    fontEncodingMaps: Map<string, Map<number, string>>;
    /** Object references for all resolved fonts, keyed by resource name. */
    fontRefs: Map<string, PdfObjectReference>;
    fields: TField[];
    isFontUnicode: (fontName: string) => boolean;
    needAppearances: boolean;
}