---
title: Document Reuse and Capture
description: Capability that requests, stores, and reuses documents. Reduces friction in journeys with document capture by offering classification, OCR, FaceMatch, and CPF Match.
canonical: https://developer.unico.io/dual-api/capabilities/document-reuse-and-capture
locale: en
generated_by: markdown-export
---

When the document is not yet on file, the capability handles the new capture.

### What it does

The capability covers two combined scenarios:

- **Reuse:** if the user already has a document on file in Unico's database — even if it was captured through another integration with a different client — it can be reused, eliminating the need for a new capture and streamlining the flow.
- **New capture:** if no prior document exists in the database, Unico performs a new capture with the user, processing it with document classification, OCR, FaceMatch, and CPF Match (Brazil only).

The result is a set of returns about the document — classification, extracted data, comparison against the selfie, and verification against the provided CPF (Brazil only).

### Supported documents

| Country | Documents |
|---|---|
| **Argentina** | Driver's License, Identity Card (DNI), Paper Passport |
| **Brazil** | Identity Card (RG and CIN), Driver's License (CNH), Paper Passport |
| **Chile** | Identity Card, Driver's License, Polycarbonate Passport |
| **Colombia** | Identity Card, Driver's License, Polycarbonate Passport |
| **Indonesia** | Driver's License, Identity Card, Paper Passport |
| **Mexico** | Consular Voter ID, Voter ID (INE), Driver's License |
| **Peru** | Identity Card (DNI), Paper Passport |
| **USA** | Driver's License, ID Card, Paper Passport, Passport Card, Polycarbonate Passport, Social Security Card |

### Inputs

- A capture session opened via [`POST /v1/process`](/dual-api/developers/api-reference/web-sdk) with a flow that includes Document Capture & Reuse.
- The user's identification document number. In Brazil, this is the CPF, which is used for CPF Match.

### Possible responses

The capability returns **four combined outputs**:

| Output | Description |
|---|---|
| **Classification** | Indicates which document type was identified. In Brazil: RG, CNH, CIN, or Passport. |
| **Data Extraction (OCR)** | Extraction of text data from the document image. |
| **FaceMatch** | Comparison between the selfie face and the face on the document. |
| **CPF Match** | Brazil only: verification that the provided CPF matches the CPF on the document (when the document contains a CPF). |

:::secondary[Reuse vs new capture]
The response shape is the same — same fields whether the document was reused or newly captured.
:::

### Availability

| Surface | Supported |
|---|:-:|
| **SDK** (Android, iOS, Flutter) | ✅ |
| **Web** (iFrame, Redirect) | ✅ |
| **API** (headless, no SDK) | ✅ |