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SnapOtter/apps/docs/tools/protect-pdf.md
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SnapOtterandGitHub ecc0a45f0e docs: per-tool reference pages for all 157 tools (+ fix docs build) (#261)
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description
description
Add password protection with AES-256 encryption to a PDF.

Protect PDF

Add password protection to a PDF using AES-256 encryption.

API Endpoint

POST /api/v1/tools/protect-pdf

Accepts multipart form data with a PDF file and a JSON settings field.

Parameters

Parameter Type Required Default Description
userPassword string Yes - Password required to open the PDF (1-256 characters)
ownerPassword string No Same as userPassword Owner password for permissions (1-256 characters)

Example Request

curl -X POST http://localhost:1349/api/v1/tools/protect-pdf \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@document.pdf" \
  -F 'settings={"userPassword": "s3cret", "ownerPassword": "0wn3r"}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/document.pdf",
  "originalSize": 2450000,
  "processedSize": 2500000
}

Notes

  • Encryption uses AES-256.
  • If ownerPassword is omitted, it defaults to the same value as userPassword.
  • Passwords are redacted from audit logs.
  • The encrypted PDF requires the user password to open and the owner password (if different) for full permissions.