Verify

Verify the signature and integrity of a signed PDF.

Send a JSON request body with:

• document: object containing either base64 or url

The response includes verification status, signer information, and document metadata.

POST /v1/verify

Verify

cURL

curl --request POST \
  --url https://api.superdoc.dev/v1/verify \
  --header 'Content-Type: application/json' \
  --data '{
  "document": {}
}'

200

{
  "valid": true,
  "reason": "<string>",
  "signer": "<unknown>",
  "signers": "<array>",
  "document": {}
}

Body

application/json

document · object · required

Signed PDF provided as either base64 or URL

Response

200

application/json

Default Response

valid · boolean · required

Whether the signature is valid

reason · string

Explanation of verification result

signer · any

Primary signer information

signers · array

All signers (only when valid)

document · object

Document metadata (only when valid)