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PDF.co MCP Server

Official
by pdfdotco
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Python
Remote

pdf_to_image

Convert PDFs and scanned images into JPG, PNG, WebP, or TIFF files, using OCR for scanned documents and optional page or region selection.

Instructions

Convert PDF and scanned images to various image formats (JPG, PNG, WebP, TIFF).
Ref:
 - https://developer.pdf.co/api/pdf-to-image/jpg.md
 - https://developer.pdf.co/api/pdf-to-image/png.md
 - https://developer.pdf.co/api/pdf-to-image/webp.md
 - https://developer.pdf.co/api/pdf-to-image/tiff.md

Input Schema

TableJSON 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)
typeNoType of image to convert to. (jpg, png, webp, tiff) (Optional)jpg
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 behavioral burden, yet it discloses almost nothing beyond the conversion action. It does not mention whether the operation is synchronous or asynchronous, what the response contains, authentication requirements, rate limits, or how output files are returned.

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?

The description is front-loaded with the core purpose in a single sentence and avoids filler. The four reference links are compact and relevant, though they are not integrated into any usage or behavioral context.

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 tool with 14 parameters, no annotations, and no output schema, the description is too thin. While the input schema is fully documented, the description does not explain return behavior, async/job semantics, or other context an agent needs to invoke the tool correctly beyond the basic purpose.

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 the schema already documents all 14 parameters thoroughly, establishing a baseline of 3. The description adds only a redundant list of output formats already captured by the schema's type choices and provides no additional meaning for parameters such as pages, rect, profiles, or expiration.

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 states a specific verb and resource: convert PDF and scanned images into image formats, and names the output types (JPG, PNG, WebP, TIFF). This clearly distinguishes it from text/structured-data converters, but it does not explicitly name a sibling or contrast the use case beyond the format list.

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?

The description provides no explicit when-to-use or when-not-to-use guidance, no prerequisites, and no named alternatives. It merely states the conversion operation and links to endpoint docs, leaving the agent to infer usage context.

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

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