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Tanod Docs PDF Protect
x402
Tanod Docs PDF Protect is a paid API for AI agents from docs.tanod.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).
Password-protects a PDF with AES-256 encryption and granular permission controls (print, copy, modify, etc.)
Price / call$0.005
Success—
StatusUnknown
How this service works
Documents: DOCX template fill, Office to PDF, any file to Markdown, PDF to Word, OCR, PDF pipeline.
Output
Returns a JSON object containing the AES-256 encrypted PDF (as base64 inline or a 24-hour download URL), along with metadata including file size in bytes, page count, active permissions granted, whether an owner password was set, encryption type, and input/output byte counts.
Example use cases
Lock confidential report before sharing
“I need to send this financial report PDF to an external auditor but I want to lock it so only they can open it using the password 'Audit2024$', and they shouldn't be able to copy or modify any of the content. Here's the file: https://company.com/q4-report.pdf”
Distribute read-only legal documents
“Take this contract PDF at https://storage.example.com/contract.pdf and protect it with the user password 'ReadOnly#99' — disable printing, copying text, modifying, and form filling so clients can only view it.”
Secure employee onboarding package
“I have this onboarding PDF encoded in base64 that I'd like to password-protect with 'Welcome2024!' so new hires can open it, but they shouldn't be able to print high quality copies or annotate it — can you encrypt it and give me back a download link instead of the raw data?”
Technical details
Endpoint
POSThttps://docs.tanod.dev/v1/pdf/protect?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to add AES-256 password encryption to an existing PDF with fine-grained permission controls (print, copy, modify, annotate, assemble, fill forms, accessibility). Prefer this over generic file converters when security and DRM-style restrictions are the primary goal rather than format conversion.
Side effects
- PDF URL is unreachable, private, or internal (IP-literal hosts refused)
- PDF exceeds 20 MB via URL or 10 MB via base64
- Neither url nor pdf_base64 provided
- Invalid base64 encoding in pdf_base64
- Password exceeds 127 characters
- Malformed permissions object with unrecognized keys
- PDF is already encrypted and cannot be re-protected without owner password
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | — | Public http(s) URL of the PDF (at most 20 MB; private, internal and IP-literal hosts are refused); or use pdf_base64. |
| output | string | base64 (default): the file comes back inline as base64. url: the file is stored for 24 hours and the reply carries a download link (url, expires_at, bytes, content_type, sha256) instead of the base64, which keeps the file out of your context window. |
| pdf_base64 | — | The PDF as base64 (at most 10 MB decoded per request); or use url. |
| permissions | object | What a user-password holder may do (default: everything). |
| user_password | string | Needed to open the PDF; never logged. |
| owner_password | — | Lifts the restrictions; default: a random one nobody knows. |
Output
Schema · Response
{
"type": "json",
"example": {
"file": {
"name": "protected.pdf",
"bytes": 14183,
"pages": 1,
"data_base64": "JVBERi0xLjcKJb/3... (trimmed: 18,912 base64 characters in the reply)",
"content_type": "application/pdf"
},
"operation": "protect",
"encryption": "AES-256",
"input_bytes": 13264,
"input_pages": 1,
"permissions": {
"print": true,
"modify": true,
"annotate": true,
"assemble": true,
"copy_text": true,
"fill_forms": true,
"accessibility": true,
"print_high_quality": true
},
"output_bytes": 14183,
"untrusted_content": true,
"owner_password_set": false,
"active_content_removed": {}
}
}Tags
x402
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