---
title: "PDF 数字签名（scope pdf.sign；可选自带 PEM 密钥对、可见签名块）"
method: POST
path: "/sign"
---

# PDF 数字签名（scope pdf.sign；可选自带 PEM 密钥对、可见签名块）

`POST /sign`

## Request

- Base URL: `https://pdflean.com/api/v1`
- URL: `https://pdflean.com/api/v1/sign`
- Auth: HTTP bearer

## Response `200`

已签名 PDF（base64）

---

[API](https://skmtc.dev/pdflean/apis/pdflean-api.md) · [All operations](https://skmtc.dev/pdflean/apis/pdflean-api/llms.txt) · [OpenAPI document](https://skmtc.dev/pdflean/apis/pdflean-api/revisions/fe391cfbf9f9?raw)