{ "title": "Unlock PDF", "human_url": "https://happytails.ai/en/pdf-tools/unlock-pdf/", "agent_url": "https://happytails.ai/agents/en/pdf-tools/unlock-pdf/", "language": "en", "markdown_url": "https://happytails.ai/en/pdf-tools/unlock-pdf.md", "content": "Unlock PDF\nRemove PDF encryption using the correct password.\nUseful next steps\nProtect PDF\nEncrypt a PDF with a password before sharing it.\nRedact PDF\nPermanently remove matching selectable text from a PDF.\nHow to use Unlock PDF\nChoose a file in PDF.\nReview the settings, then choose Run Unlock PDF.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nRemove PDF encryption using the correct password. Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.", "content_format": "text/plain", "visibility": "public", "links": [ { "name": "Protect PDF Encrypt a PDF with a password before sharing it.", "url": "https://happytails.ai/en/pdf-tools/protect-pdf/" }, { "name": "Redact PDF Permanently remove matching selectable text from a PDF.", "url": "https://happytails.ai/en/pdf-tools/redact-pdf/" } ], "tool": { "id": "unlock-pdf", "category": "pdf-tools", "built": true, "requirements": "Remove supported restrictions with authorized access/known password; no recovery guarantee.", "implementation": { "fields": [ { "key": "password", "label": "Current opening password", "value": "", "type": "password" } ], "files": true, "accept": ".pdf", "multiple": false, "input": false, "processing": "Server required", "native": true, "maxFileBytes": 20971520, "note": "Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.", "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/unlock-pdf/run", "api": { "id": "unlock-pdf", "name": "Unlock PDF", "category": "pdf-tools", "description": "Remove PDF encryption using the correct password.", "notes": "Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.", "human_path": "/en/pdf-tools/unlock-pdf/", "method": "POST", "endpoint": "/api/v1/tools/unlock-pdf/run", "schema_url": "/api/v1/tools/unlock-pdf", "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": { "password": { "type": "string", "description": "Current opening password", "default": "" } } }, "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" } }, "markdown": "# Unlock PDF\n\n- Human page: https://happytails.ai/en/pdf-tools/unlock-pdf/\n- Markdown: https://happytails.ai/en/pdf-tools/unlock-pdf.md\n- Structured JSON: https://happytails.ai/agents/en/pdf-tools/unlock-pdf/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `unlock-pdf` |\n| Category | pdf-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Server required |\n| HTTP API | /api/v1/tools/unlock-pdf/run |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nProcessed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\nAccepted browser files: `.pdf`. Choose one file.\n\nBrowser file-input limit: 20971520 bytes in total. HTTP limits can differ.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `password` | Current opening password | password | \"\" | |\n\n### HTTP contract\n\nAPI 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.\n\n```http\nPOST https://happytails.ai/api/v1/tools/unlock-pdf/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/unlock-pdf.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 31457280 |\n| input_characters | 1000000 |\n| files_bytes | 20971520 |\n| max_files | 1 |\n| timeout_seconds | 90 |\n\n#### Complete input schema\n\n```json\n{\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"input\": {\n \"type\": \"string\",\n \"maxLength\": 1000000,\n \"default\": \"\",\n \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n },\n \"options\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"password\": {\n \"type\": \"string\",\n \"description\": \"Current opening password\",\n \"default\": \"\"\n }\n }\n },\n \"files\": {\n \"type\": \"array\",\n \"maxItems\": 1,\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"base64\"\n ],\n \"additionalProperties\": false,\n \"properties\": {\n \"name\": {\n \"type\": \"string\",\n \"maxLength\": 200,\n \"description\": \"Filename only, no path.\"\n },\n \"mime\": {\n \"type\": \"string\",\n \"maxLength\": 150\n },\n \"bytes\": {\n \"type\": \"integer\",\n \"minimum\": 0,\n \"description\": \"Optional decoded byte count; must match content if supplied.\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\",\n \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n }\n }\n }\n }\n }\n}\n```\n\n#### Complete output schema\n\n```json\n{\n \"type\": \"object\",\n \"required\": [\n \"tool\",\n \"result\"\n ],\n \"properties\": {\n \"tool\": {\n \"type\": \"string\"\n },\n \"result\": {\n \"type\": \"object\",\n \"required\": [\n \"text\",\n \"files\"\n ],\n \"properties\": {\n \"text\": {\n \"type\": [\n \"string\",\n \"null\"\n ]\n },\n \"data\": {\n \"description\": \"Parsed JSON when the textual result is JSON.\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"files\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"mime\",\n \"bytes\",\n \"base64\"\n ],\n \"properties\": {\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"bytes\": {\n \"type\": \"integer\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\"\n }\n }\n }\n }\n }\n }\n }\n}\n```\n\n#### Error and retry handling\n\nFailures 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.\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nRemove supported restrictions with authorized access/known password; no recovery guarantee.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n \"id\": \"unlock-pdf\",\n \"category\": \"pdf-tools\",\n \"built\": true,\n \"requirements\": \"Remove supported restrictions with authorized access/known password; no recovery guarantee.\",\n \"implementation\": {\n \"fields\": [\n {\n \"key\": \"password\",\n \"label\": \"Current opening password\",\n \"value\": \"\",\n \"type\": \"password\"\n }\n ],\n \"files\": true,\n \"accept\": \".pdf\",\n \"multiple\": false,\n \"input\": false,\n \"processing\": \"Server required\",\n \"native\": true,\n \"maxFileBytes\": 20971520,\n \"note\": \"Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.\",\n \"experience\": {\n \"automatic\": false,\n \"single\": false,\n \"label\": \"Your text\",\n \"placeholder\": \"Type or paste your input…\",\n \"help\": \"Up to 1,000,000 characters. Review the settings before running.\",\n \"action\": null\n },\n \"mode\": \"explicit\",\n \"interactive\": false\n },\n \"execution\": \"POST /api/v1/tools/unlock-pdf/run\",\n \"api\": {\n \"id\": \"unlock-pdf\",\n \"name\": \"Unlock PDF\",\n \"category\": \"pdf-tools\",\n \"description\": \"Remove PDF encryption using the correct password.\",\n \"notes\": \"Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.\",\n \"human_path\": \"/en/pdf-tools/unlock-pdf/\",\n \"method\": \"POST\",\n \"endpoint\": \"/api/v1/tools/unlock-pdf/run\",\n \"schema_url\": \"/api/v1/tools/unlock-pdf\",\n \"input_schema\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"input\": {\n \"type\": \"string\",\n \"maxLength\": 1000000,\n \"default\": \"\",\n \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n },\n \"options\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"password\": {\n \"type\": \"string\",\n \"description\": \"Current opening password\",\n \"default\": \"\"\n }\n }\n },\n \"files\": {\n \"type\": \"array\",\n \"maxItems\": 1,\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"base64\"\n ],\n \"additionalProperties\": false,\n \"properties\": {\n \"name\": {\n \"type\": \"string\",\n \"maxLength\": 200,\n \"description\": \"Filename only, no path.\"\n },\n \"mime\": {\n \"type\": \"string\",\n \"maxLength\": 150\n },\n \"bytes\": {\n \"type\": \"integer\",\n \"minimum\": 0,\n \"description\": \"Optional decoded byte count; must match content if supplied.\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\",\n \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n }\n }\n }\n }\n }\n },\n \"output_schema\": {\n \"type\": \"object\",\n \"required\": [\n \"tool\",\n \"result\"\n ],\n \"properties\": {\n \"tool\": {\n \"type\": \"string\"\n },\n \"result\": {\n \"type\": \"object\",\n \"required\": [\n \"text\",\n \"files\"\n ],\n \"properties\": {\n \"text\": {\n \"type\": [\n \"string\",\n \"null\"\n ]\n },\n \"data\": {\n \"description\": \"Parsed JSON when the textual result is JSON.\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"files\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"mime\",\n \"bytes\",\n \"base64\"\n ],\n \"properties\": {\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"bytes\": {\n \"type\": \"integer\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"processing\": \"Server; self-hosted native engine, no external conversion service\",\n \"limits\": {\n \"request_bytes\": 31457280,\n \"input_characters\": 1000000,\n \"files_bytes\": 20971520,\n \"max_files\": 1,\n \"timeout_seconds\": 90\n }\n },\n \"agent_processing\": \"Server; self-hosted native engine, no external conversion service\",\n \"browser_agent\": {\n \"supported\": true,\n \"name\": \"run_current_tool\",\n \"discovery\": \"WebMCP on the human page in a supporting browser\",\n \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n }\n}\n```\n\n## Page guide\n\nRemove PDF encryption using the correct password.\n\n## Useful next steps\n\n- [Protect PDF](https://happytails.ai/en/pdf-tools/protect-pdf/): Encrypt a PDF with a password before sharing it. ([Markdown](https://happytails.ai/en/pdf-tools/protect-pdf.md))\n\n- [Redact PDF](https://happytails.ai/en/pdf-tools/redact-pdf/): Permanently remove matching selectable text from a PDF. ([Markdown](https://happytails.ai/en/pdf-tools/redact-pdf.md))\n\n## How to use Unlock PDF\n\n1. Choose a file in PDF.\n2. Review the settings, then choose Run Unlock PDF.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nRemove PDF encryption using the correct password. Processed by the local, self-hosted engine. No third-party conversion service is used. Requires the password for an encrypted document. Does not crack or recover unknown passwords.\n" }