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pdfdotco

PDF.co MCP Server

Official
by pdfdotco

pdf_to_xml

Converts PDFs and scanned images to XML for structured data extraction, with OCR language, page range, and coordinate options.

Instructions

Convert PDF and scanned images to XML format.
Ref: https://developer.pdf.co/api/pdf-to-xml.md

Input Schema

NameRequiredDescriptionDefault
urlYesURL to the source file. Supports publicly accessible links including Google Drive, Dropbox, PDF.co Built-In Files Storage. Use 'upload_file' tool to upload local files.
langNoLanguage for OCR for scanned documents. Default is 'eng'. See PDF.co docs for supported languages. (Optional, Default: 'eng')eng
nameNoFile name for the generated output. (Optional)
rectNoDefines coordinates for extraction (e.g., '51.8,114.8,235.5,204.0'). (Optional)
pagesNoComma-separated page indices (e.g., '0, 1, 2-' or '1, 3-7'). Use '!' for inverted page numbers (e.g., '!0' for last page). Processes all pages if None. (Optional)
unwrapNoUnwrap lines into a single line within table cells when lineGrouping is enabled. Must be true or false. (Optional)
api_keyNoPDF.co API key. If not provided, will use X_API_KEY environment variable. (Optional)
passwordNoPassword of the PDF file. (Optional)
profilesNoExtra engine options for this endpoint as a JSON object encoded in a string. The options differ per endpoint; see https://developer.pdf.co/api/profiles. (Optional)
expirationNoLifetime of the output link in minutes; the output file is deleted afterwards. API default is 60; the maximum depends on the plan. (Optional)
httppasswordNoHTTP auth password if required to access source url. (Optional)
httpusernameNoHTTP auth user name if required to access source url. (Optional)
line_groupingNoEnables line grouping within table cells when set to '1'. (Optional)0

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv0.0.11
    • addedInput schema / properties / expiration
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Lifetime of the output link in minutes; the output file is deleted afterwards. API default is 60; the maximum depends on the plan. (Optional)",
      +  "title": "Expiration"
      +}
    • addedInput schema / properties / profiles
      Added value: +{
      +  "default": "",
      +  "description": "Extra engine options for this endpoint as a JSON object encoded in a string. The options differ per endpoint; see https://developer.pdf.co/api/profiles. (Optional)",
      +  "title": "Profiles",
      +  "type": "string"
      +}
  2. First observed

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full disclosure burden. It says nothing about whether the call is synchronous or returns a job ID (siblings get_job_check and wait_job_completion suggest async patterns exist), what the response contains, or that output links expire per the 'expiration' parameter. Only a docs link is offered.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

One front-loaded sentence plus a reference URL — zero padding and no repetition of schema content. It is efficiently sized, though the brevity reflects missing information rather than disciplined compression.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 13-parameter conversion tool with no annotations and no output schema, the description should explain the return shape, async behavior, and OCR applicability. Instead it offers a single sentence and a link, leaving key operational facts for the agent to guess.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so every one of the 13 parameters is already documented in the schema, including OCR language, page ranges, and expiration. The description adds no parameter meaning beyond that, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description gives a specific verb and resource ('Convert PDF and scanned images to XML format'), which cleanly separates it from siblings like pdf_to_json, pdf_to_csv, and pdf_to_html. It does not explicitly name which sibling to prefer, but the target format alone makes the tool identifiable.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to choose this tool over pdf_to_json, pdf_to_html, or excel_to_xml, nor any prerequisites or exclusions. The 'scanned images' mention hints at OCR use, but the agent must infer that condition rather than being told.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.