export interface RelaxedInputCoercion {
    code: string;
    path: string;
    description: string;
    legacyShape: string;
    modernShape: string;
}
export interface PdfInputWarning {
    code: string;
    message: string;
    path: string;
    from?: unknown;
    to?: unknown;
}
export interface PdfRelaxedInputOptions {
    onInputWarning?: (warning: PdfInputWarning) => void;
    relaxed?: boolean;
}
export declare const PDF_RELAXED_INPUT_COERCIONS: RelaxedInputCoercion[];
export declare function preprocessPdfDocumentInput(input: unknown, options?: PdfRelaxedInputOptions): {
    value: unknown;
    warnings: PdfInputWarning[];
};
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