---
title: "Watermark Pdf"
method: POST
path: "/v1/pdf/watermark"
tags: ["operations"]
---

# Watermark Pdf

`POST /v1/pdf/watermark`

## Request

- Base URL: `https://api.smartpdf.ru`
- URL: `https://api.smartpdf.ru/v1/pdf/watermark`
- Auth: HTTP bearer

## Headers

- `X-API-Key` string, nullable

## Request body

- WatermarkRequest
  - `webhook_url` string, nullable: https-адрес для уведомления о завершении; подпись — заголовок X-SmartPDF-Signature (см. описание API)
  - `file_id` string, required
  - `text` string, nullable
  - `image_file_id` string, nullable
  - `font_size` integer
  - `color` string
  - `opacity` number
  - `angle` number
  - `position` 'center' | 'tile' | 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right'
  - `pages` union
    - integer[]
    - 'all'
  - `scale` number

## Response `202`

Successful Response

- TaskIdResponse
  - `task_id` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/smartpdf/apis/smartpdf-api.md) · [All operations](https://skmtc.dev/smartpdf/apis/smartpdf-api/llms.txt) · [OpenAPI document](https://skmtc.dev/smartpdf/apis/smartpdf-api/revisions/1a29161a71da?raw)