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Help Center/ Data Security Center/ API Reference (ME-Abu Dhabi Region)/ API Description/ Document Watermarking/ Extracting Invisible Watermarks from Documents (Document Addresses)

Extracting Invisible Watermarks from Documents (Document Addresses)

Updated on 2022-12-29 GMT+08:00

Function

This API is used to extract invisible text watermarks from Word (.docx), PPT (.pptx), Excel (.xlsx), and PDF (.pdf) documents. You need to pass the address of a watermarked document (only OBS path is supported) to this API. DSC returns the invisible text watermark extracted from the document in JSON format.

URI

POST /v1/{project_id}/doc-address/watermark/extract

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is a token.

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

region_id

Yes

String

ID of the region where the project is located, for example, xx-xx-1.

doc_type

Yes

String

Type of the document whose watermark is to be extracted.

Enumeration values:

  • WORD

  • EXCEL

  • PDF

  • PPT

src_file

Yes

String

Address of the document whose text watermark is to be extracted. Currently, only cloud service OBS objects are supported. The format is obs://bucket/object, where bucket indicates the name of the OBS bucket in the same region as the current project, and object indicates the full path name of the object. For example, obs://hwbucket/hwinfo/hw.doc.

file_password

No

String

Password for opening a file, which can contain a maximum of 256 characters. If an Office Word document requires a password for read or domain control, you need to enter the password to open the file.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

watermark

String

Invisible watermark. The length cannot exceed 32 characters.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Error Code

error_msg

String

Error Message

Example Requests

POST /v1/{project_id}/doc-address/watermark/extract

{
  "region_id" : "xx-xx-1",
  "src_file" : "obs://hwbucket/hwinfo/hw.docx",
  "doc_type" : "WORD"
}

Example Responses

Status code: 200

Request succeeded.

{
  "watermark" : "blind_watermark"
}

Status code: 400

Invalid request.

{
  "error_code" : "DSC.00000007",
  "error_msg" : "File format error"
}

Status Codes

Status Code

Description

200

Request succeeded.

400

Invalid request.

Error Codes

See Error Codes.

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