{ "title": "Crop PDF", "human_url": "https://happytails.ai/en/pdf-tools/crop-pdf/", "agent_url": "https://happytails.ai/agents/en/pdf-tools/crop-pdf/", "language": "en", "markdown_url": "https://happytails.ai/en/pdf-tools/crop-pdf.md", "content": "Crop PDF\nChange the visible margins of selected PDF pages.\nUseful next steps\nMerge PDF\nCombine PDF files into one document.\nSplit PDF\nSave selected PDF pages as separate files.\nExtract pages\nCreate a PDF containing the pages you select.\nHow to use Crop PDF\nChoose a file in PDF.\nReview the settings, then choose Run Crop PDF.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nChange the visible margins of selected PDF pages. Enter the same crop margin for all four sides in PDF points. Cropping changes the visible area but keeps underlying content; use a true redaction tool to remove sensitive material.", "content_format": "text/plain", "visibility": "public", "links": [ { "name": "Merge PDF Combine PDF files into one document.", "url": "https://happytails.ai/en/pdf-tools/merge-pdf/" }, { "name": "Split PDF Save selected PDF pages as separate files.", "url": "https://happytails.ai/en/pdf-tools/split-pdf/" }, { "name": "Extract pages Create a PDF containing the pages you select.", "url": "https://happytails.ai/en/pdf-tools/extract-pages/" } ], "tool": { "id": "crop-pdf", "category": "pdf-tools", "built": true, "requirements": "Page boxes and margins; explain cropping may leave hidden content rather than redact it.", "implementation": { "fields": [ { "key": "pages", "label": "Pages (blank = all)", "value": "", "type": "text" }, { "key": "margin", "label": "Crop margin (PDF points)", "value": 36, "type": "number" } ], "files": true, "multiple": false, "input": false, "accept": ".pdf", "note": "Cropping changes the visible area, not the underlying content. It is not redaction.", "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/crop-pdf/run", "api": { "id": "crop-pdf", "name": "Crop PDF", "category": "pdf-tools", "description": "Change the visible margins of selected PDF pages.", "notes": "Cropping changes the visible area, not the underlying content. It is not redaction.", "human_path": "/en/pdf-tools/crop-pdf/", "method": "POST", "endpoint": "/api/v1/tools/crop-pdf/run", "schema_url": "/api/v1/tools/crop-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": { "pages": { "type": "string", "description": "Pages (blank = all)", "default": "" }, "margin": { "type": "number", "description": "Crop margin (PDF points)", "default": 36.0 } } }, "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; same transformation code as browser tools", "limits": { "request_bytes": 8388608, "input_characters": 1000000, "files_bytes": 5242880, "max_files": 1, "timeout_seconds": 12 } }, "agent_processing": "Server; same transformation code as browser tools", "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": "# Crop PDF\n\n- Human page: https://happytails.ai/en/pdf-tools/crop-pdf/\n- Markdown: https://happytails.ai/en/pdf-tools/crop-pdf.md\n- Structured JSON: https://happytails.ai/agents/en/pdf-tools/crop-pdf/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `crop-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 | Browser; see tool notes for network behavior. |\n| HTTP API | /api/v1/tools/crop-pdf/run |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nCropping changes the visible area, not the underlying content. It is not redaction.\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\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `pages` | Pages (blank = all) | text | \"\" | |\n| `margin` | Crop margin (PDF points) | number | 36 | |\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/crop-pdf/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/crop-pdf.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 8388608 |\n| input_characters | 1000000 |\n| files_bytes | 5242880 |\n| max_files | 1 |\n| timeout_seconds | 12 |\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 \"pages\": {\n \"type\": \"string\",\n \"description\": \"Pages (blank = all)\",\n \"default\": \"\"\n },\n \"margin\": {\n \"type\": \"number\",\n \"description\": \"Crop margin (PDF points)\",\n \"default\": 36.0\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\nPage boxes and margins; explain cropping may leave hidden content rather than redact it.\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\": \"crop-pdf\",\n \"category\": \"pdf-tools\",\n \"built\": true,\n \"requirements\": \"Page boxes and margins; explain cropping may leave hidden content rather than redact it.\",\n \"implementation\": {\n \"fields\": [\n {\n \"key\": \"pages\",\n \"label\": \"Pages (blank = all)\",\n \"value\": \"\",\n \"type\": \"text\"\n },\n {\n \"key\": \"margin\",\n \"label\": \"Crop margin (PDF points)\",\n \"value\": 36,\n \"type\": \"number\"\n }\n ],\n \"files\": true,\n \"multiple\": false,\n \"input\": false,\n \"accept\": \".pdf\",\n \"note\": \"Cropping changes the visible area, not the underlying content. It is not redaction.\",\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/crop-pdf/run\",\n \"api\": {\n \"id\": \"crop-pdf\",\n \"name\": \"Crop PDF\",\n \"category\": \"pdf-tools\",\n \"description\": \"Change the visible margins of selected PDF pages.\",\n \"notes\": \"Cropping changes the visible area, not the underlying content. It is not redaction.\",\n \"human_path\": \"/en/pdf-tools/crop-pdf/\",\n \"method\": \"POST\",\n \"endpoint\": \"/api/v1/tools/crop-pdf/run\",\n \"schema_url\": \"/api/v1/tools/crop-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 \"pages\": {\n \"type\": \"string\",\n \"description\": \"Pages (blank = all)\",\n \"default\": \"\"\n },\n \"margin\": {\n \"type\": \"number\",\n \"description\": \"Crop margin (PDF points)\",\n \"default\": 36.0\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; same transformation code as browser tools\",\n \"limits\": {\n \"request_bytes\": 8388608,\n \"input_characters\": 1000000,\n \"files_bytes\": 5242880,\n \"max_files\": 1,\n \"timeout_seconds\": 12\n }\n },\n \"agent_processing\": \"Server; same transformation code as browser tools\",\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\nChange the visible margins of selected PDF pages.\n\n## Useful next steps\n\n- [Merge PDF](https://happytails.ai/en/pdf-tools/merge-pdf/): Combine PDF files into one document. ([Markdown](https://happytails.ai/en/pdf-tools/merge-pdf.md))\n\n- [Split PDF](https://happytails.ai/en/pdf-tools/split-pdf/): Save selected PDF pages as separate files. ([Markdown](https://happytails.ai/en/pdf-tools/split-pdf.md))\n\n- [Extract pages](https://happytails.ai/en/pdf-tools/extract-pages/): Create a PDF containing the pages you select. ([Markdown](https://happytails.ai/en/pdf-tools/extract-pages.md))\n\n## How to use Crop PDF\n\n1. Choose a file in PDF.\n2. Review the settings, then choose Run Crop PDF.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nChange the visible margins of selected PDF pages. Enter the same crop margin for all four sides in PDF points. Cropping changes the visible area but keeps underlying content; use a true redaction tool to remove sensitive material.\n" }