# Document translator - Human page: https://happytails.ai/en/document-tools/document-translator/ - Markdown: https://happytails.ai/en/document-tools/document-translator.md - Structured JSON: https://happytails.ai/agents/en/document-tools/document-translator/index.json - Visibility: public ## Tool capabilities | Property | Value | | --- | --- | | Tool ID | `document-translator` | | Category | document-tools | | Implementation | Registered implementation. Registration alone is not a production-quality guarantee. | | Browser execution | Use the visible action or interactive controls. | | Browser processing | Server required | | HTTP API | /api/v1/tools/document-translator/run | | Browser-agent interface | run_current_tool | ### Implementation notes Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Translates extracted text. Original document layout is not preserved. ### Inputs and settings No free-text input is required. Use the file inputs and/or settings below. Accepted browser files: `.pdf,.docx,.txt`. Choose one file. Browser file-input limit: 20971520 bytes in total. HTTP limits can differ. | Setting | Meaning | Control type | Default | Constraints | | --- | --- | --- | --- | --- | | `language` | Translate to | select | "English" | Allowed: English, Spanish, French, German, Portuguese | ### HTTP contract API calls process supplied data on the server. The website origin is `https://happytails.ai`. Server API hosting is not connected on the public website yet. Use your local server origin to test these requests. ```http POST https://happytails.ai/api/v1/tools/document-translator/run Content-Type: application/json ``` [Detailed operation reference](https://happytails.ai/en/api/tools/document-translator.md) · [Shared API guide](https://happytails.ai/en/api.md) #### Limits | Limit | Value | | --- | --- | | request_bytes | 31457280 | | input_characters | 1000000 | | files_bytes | 20971520 | | max_files | 1 | | timeout_seconds | 90 | #### Complete input schema ```json { "type": "object", "additionalProperties": false, "properties": { "input": { "type": "string", "maxLength": 1000000, "default": "", "description": "Plain text input. File tools use files instead unless otherwise documented." }, "options": { "type": "object", "additionalProperties": false, "properties": { "language": { "type": "string", "description": "Translate to", "default": "English", "enum": [ "English", "Spanish", "French", "German", "Portuguese" ] } } }, "files": { "type": "array", "maxItems": 1, "items": { "type": "object", "required": [ "name", "base64" ], "additionalProperties": false, "properties": { "name": { "type": "string", "maxLength": 200, "description": "Filename only, no path." }, "mime": { "type": "string", "maxLength": 150 }, "bytes": { "type": "integer", "minimum": 0, "description": "Optional decoded byte count; must match content if supplied." }, "base64": { "type": "string", "contentEncoding": "base64", "description": "File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size." } } } } } } ``` #### Complete output schema ```json { "type": "object", "required": [ "tool", "result" ], "properties": { "tool": { "type": "string" }, "result": { "type": "object", "required": [ "text", "files" ], "properties": { "text": { "type": [ "string", "null" ] }, "data": { "description": "Parsed JSON when the textual result is JSON." }, "name": { "type": "string" }, "mime": { "type": "string" }, "files": { "type": "array", "items": { "type": "object", "required": [ "name", "mime", "bytes", "base64" ], "properties": { "name": { "type": "string" }, "mime": { "type": "string" }, "bytes": { "type": "integer" }, "base64": { "type": "string", "contentEncoding": "base64" } } } } } } } } ``` #### Error and retry handling Failures return a non-200 status and `error.code` plus `error.message`. Correct invalid input before retrying; retry server-busy responses with bounded backoff. Returned files contain Base64 data, not persistent download URLs. Decode and inspect the output before treating conversion as successful. See the shared API guide for the complete status and timeout rules. ### Browser-agent workflow 1. Open the human page in a browser that supports WebMCP. 2. Discover the interface exposed by that page; use its actual schema. 3. Select files on the page first when the tool requires files. 4. Call `run_current_tool` with valid input and settings. 5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links. Calls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution. ### Planning specification Translate extracted text with side-by-side original and translated sections; preserve headings where feasible; disclose formatting loss instead of promising perfect document reconstruction. This describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support. ### Complete machine-readable capability record ```json { "id": "document-translator", "category": "document-tools", "built": true, "requirements": "Translate extracted text with side-by-side original and translated sections; preserve headings where feasible; disclose formatting loss instead of promising perfect document reconstruction.", "implementation": { "fields": [ { "key": "language", "label": "Translate to", "type": "select", "value": "English", "values": [ "English", "Spanish", "French", "German", "Portuguese" ] } ], "files": true, "accept": ".pdf,.docx,.txt", "multiple": false, "input": false, "processing": "Server required", "native": true, "ai": true, "maxFileBytes": 20971520, "note": "Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Translates extracted text. Original document layout is not preserved.", "experience": { "automatic": false, "single": false, "label": "Your text", "placeholder": "Type or paste your input…", "help": "Up to 1,000,000 characters. Review the settings before running.", "action": null }, "mode": "explicit", "interactive": false }, "execution": "POST /api/v1/tools/document-translator/run", "api": { "id": "document-translator", "name": "Document translator", "category": "document-tools", "description": "Translate readable document text into your chosen language.", "notes": "Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Translates extracted text. Original document layout is not preserved.", "human_path": "/en/document-tools/document-translator/", "method": "POST", "endpoint": "/api/v1/tools/document-translator/run", "schema_url": "/api/v1/tools/document-translator", "input_schema": { "type": "object", "additionalProperties": false, "properties": { "input": { "type": "string", "maxLength": 1000000, "default": "", "description": "Plain text input. File tools use files instead unless otherwise documented." }, "options": { "type": "object", "additionalProperties": false, "properties": { "language": { "type": "string", "description": "Translate to", "default": "English", "enum": [ "English", "Spanish", "French", "German", "Portuguese" ] } } }, "files": { "type": "array", "maxItems": 1, "items": { "type": "object", "required": [ "name", "base64" ], "additionalProperties": false, "properties": { "name": { "type": "string", "maxLength": 200, "description": "Filename only, no path." }, "mime": { "type": "string", "maxLength": 150 }, "bytes": { "type": "integer", "minimum": 0, "description": "Optional decoded byte count; must match content if supplied." }, "base64": { "type": "string", "contentEncoding": "base64", "description": "File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size." } } } } } }, "output_schema": { "type": "object", "required": [ "tool", "result" ], "properties": { "tool": { "type": "string" }, "result": { "type": "object", "required": [ "text", "files" ], "properties": { "text": { "type": [ "string", "null" ] }, "data": { "description": "Parsed JSON when the textual result is JSON." }, "name": { "type": "string" }, "mime": { "type": "string" }, "files": { "type": "array", "items": { "type": "object", "required": [ "name", "mime", "bytes", "base64" ], "properties": { "name": { "type": "string" }, "mime": { "type": "string" }, "bytes": { "type": "integer" }, "base64": { "type": "string", "contentEncoding": "base64" } } } } } } } }, "processing": "Server; self-hosted native engine, no external conversion service", "limits": { "request_bytes": 31457280, "input_characters": 1000000, "files_bytes": 20971520, "max_files": 1, "timeout_seconds": 90 } }, "agent_processing": "Server; self-hosted native engine, no external conversion service", "browser_agent": { "supported": true, "name": "run_current_tool", "discovery": "WebMCP on the human page in a supporting browser", "verification": "See audit/API-AUDIT.md; availability is not verification" } } ``` ## Page guide Translate readable document text into your chosen language. ## How to use Document translator 1. Choose a file in PDF, DOCX or TXT. 2. Review the settings, then choose Run Document translator. 3. Review the result, then use Copy result or a download link when available. ## What to expect Translate readable document text into your chosen language. Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Translates extracted text. Original document layout is not preserved.