export declare const INSPECT_PDF_NAME = "inspect_pdf";
declare const CHECK_VALUES: readonly ["pdfa", "signed", "encrypted", "placeholder", "attachments"];
type CheckValue = (typeof CHECK_VALUES)[number];
export declare const INSPECT_PDF_INPUT_SCHEMA: {
    readonly type: "object";
    readonly additionalProperties: false;
    readonly properties: {
        readonly pdfBase64: {
            readonly type: "string";
            readonly minLength: 4;
            readonly description: "Base64-encoded PDF bytes to inspect.";
        };
        readonly pages: {
            readonly type: "boolean";
            readonly default: false;
            readonly description: "When true, include per-page metadata in the response.";
        };
        readonly check: {
            readonly type: "array";
            readonly description: "Optional CI assertions. The result.checksPassed flag is true only when every requested check holds (e.g. ['pdfa','signed']).";
            readonly maxItems: 8;
            readonly items: {
                readonly type: "string";
                readonly enum: readonly ["pdfa", "signed", "encrypted", "placeholder", "attachments"];
            };
        };
    };
    readonly required: readonly ["pdfBase64"];
};
export declare const INSPECT_PDF_OUTPUT_SCHEMA: {
    readonly type: "object";
    readonly additionalProperties: false;
    readonly required: readonly ["version", "pageCount", "encryption", "signatureCount", "hasSignaturePlaceholder", "attachments"];
    readonly properties: {
        readonly version: {
            readonly type: "string";
            readonly description: "PDF version (e.g. \"1.7\").";
        };
        readonly pageCount: {
            readonly type: "integer";
            readonly minimum: 0;
        };
        readonly encryption: {
            readonly type: "string";
            readonly enum: readonly ["none", "aes-128", "aes-256", "rc4", "unknown"];
        };
        readonly pdfA: {
            readonly type: readonly ["string", "null"];
            readonly description: "Detected PDF/A claim (e.g. '1B', '2B', '2U', '3B') from XMP metadata, or null when absent.";
        };
        readonly signatureCount: {
            readonly type: "integer";
            readonly minimum: 0;
        };
        readonly hasSignaturePlaceholder: {
            readonly type: "boolean";
            readonly description: "True when at least one signature widget exists with empty /Contents — i.e. an unsigned placeholder awaiting `sign_pdf`.";
        };
        readonly attachments: {
            readonly type: "array";
            readonly description: "Embedded files exposed via /Names → /EmbeddedFiles (PDF/A-3, Factur-X).";
            readonly items: {
                readonly type: "object";
                readonly additionalProperties: false;
                readonly required: readonly ["name"];
                readonly properties: {
                    readonly name: {
                        readonly type: "string";
                    };
                    readonly sizeBytes: {
                        readonly type: "integer";
                        readonly minimum: 0;
                    };
                    readonly mimeType: {
                        readonly type: "string";
                    };
                    readonly relationship: {
                        readonly type: "string";
                    };
                    readonly description: {
                        readonly type: "string";
                    };
                };
            };
        };
        readonly info: {
            readonly type: "object";
            readonly additionalProperties: {
                readonly type: "string";
            };
            readonly description: "Document /Info dictionary entries decoded as strings.";
        };
        readonly perPage: {
            readonly type: "array";
            readonly items: {
                readonly type: "object";
                readonly required: readonly ["index", "width", "height"];
                readonly properties: {
                    readonly index: {
                        readonly type: "integer";
                    };
                    readonly width: {
                        readonly type: "number";
                    };
                    readonly height: {
                        readonly type: "number";
                    };
                };
            };
        };
        readonly checks: {
            readonly type: "object";
            readonly additionalProperties: {
                readonly type: "boolean";
            };
        };
        readonly checksPassed: {
            readonly type: "boolean";
        };
    };
};
export interface AttachmentSummary {
    readonly name: string;
    readonly sizeBytes?: number;
    readonly mimeType?: string;
    readonly relationship?: string;
    readonly description?: string;
}
export interface InspectPdfResult {
    readonly version: string;
    readonly pageCount: number;
    readonly encryption: 'none' | 'aes-128' | 'aes-256' | 'rc4' | 'unknown';
    readonly pdfA: string | null;
    readonly signatureCount: number;
    readonly hasSignaturePlaceholder: boolean;
    readonly attachments: readonly AttachmentSummary[];
    readonly info: Readonly<Record<string, string>>;
    readonly perPage?: ReadonlyArray<{
        readonly index: number;
        readonly width: number;
        readonly height: number;
    }>;
    readonly checks?: Readonly<Record<CheckValue, boolean>>;
    readonly checksPassed?: boolean;
}
/**
 * Classify an /Encrypt dictionary's /V and /Length keys into a high-level scheme name.
 *
 * Exported as a pure helper so unit tests can exercise every branch without
 * having to round-trip an actually-encrypted PDF (pdfnative does not currently
 * expose an encryption-writer API). Real-PDF coverage will be lifted further
 * in pdfnative-mcp v1.1 when fixture keys are available.
 */
export declare function classifyEncryption(v: unknown, length: unknown): InspectPdfResult['encryption'];
export declare function inspectPdf(rawInput: unknown): Promise<InspectPdfResult>;
export {};
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