File De-identification

Pass a file, get a de-identified file back.

Python

from custodian_labs import GuardianLayer

result = GuardianLayer().deidentify_file("./customers.csv", masking_type="transform")
with open(result.filename or "deid_customers.csv", "wb") as f:
    f.write(result.content)

TypeScript

import { writeFile } from "node:fs/promises";
import { GuardianLayer } from "@custodianlabs/sdk";

const result = await new GuardianLayer().deidentifyFile("./customers.csv", { maskingType: "transform" });
await writeFile(result.filename ?? "deid_customers.csv", result.content);

deidentify_file / deidentifyFile dispatches by extension. Explicit deidentify_csv / deidentify_docx / deidentify_pdf / deidentify_txt methods exist too.

Supported types

Extensions	Notes
.csv, .xlsx, .xls	Returned in the same format
.docx	.doc not accepted — convert first
.pdf	Needs extractable text (scanned images → coming soon)
.txt

masking_type (transform / redact) and pii_entities work the same as for text.

See also

Guardian Layer client (Python) · (TypeScript) · Guide: De-identify CSV · De-identify PDF