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PDF.co MCP Server

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by pdfdotco

webpage_to_pdf

Convert any webpage URL to a PDF document with customizable formatting options including page size, orientation, margins, headers, and footers.

Instructions

Convert external webpage URL to PDF.
Ref: https://developer.pdf.co/api-reference/pdf-from-url.md

The header and footer parameters can contain valid HTML markup with the following classes used to inject printing values into them:
- date: formatted print date
- title: document title
- url: document location
- pageNumber: current page number
- totalPages: total pages in the document
- img: tag is supported in both the header and footer parameter, provided that the src attribute is specified as a base64-encoded string.
For example, the following markup will generate Page N of NN page numbering:
```html
<span style='font-size:10px'>Page <span class='pageNumber'></span> of <span class='totalPages'></span>.</span>

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYesURL to the source file (external webpage URL).
marginsNoSet to CSS style margins like 10px, 5mm, 5in for all sides or 5px 5px 5px 5px (the order of margins is top, right, bottom, left). (Optional)
paperSizeNoA4 is set by default. Can be Letter, Legal, Tabloid, Ledger, A0, A1, A2, A3, A4, A5, A6 or a custom size. Custom size can be set in px (pixels), mm or in (inches) with width and height separated by space like this: 200 300, 200px 300px, 200mm 300mm, 20cm 30cm or 6in 8in. (Optional)
orientationNoSet to Portrait or Landscape. Portrait is set by default. (Optional)
printBackgroundNotrue by default. Set to false to disable printing of background. (Optional)
mediaTypeNoUses print by default. Set to screen to convert HTML as it appears in a browser or print to convert as it appears for printing or none to set none as mediaType for CSS styles. (Optional)
DoNotWaitFullLoadNofalse by default. Set to true to skip waiting for full load (like full video load etc. that may affect the total conversion time). (Optional)
headerNoUser definable HTML for the header to be applied on every page header. (Optional)
footerNoUser definable HTML for the footer to be applied on every page footer. (Optional)
httpusernameNoHTTP auth user name if required to access source url. (Optional)
httppasswordNoHTTP auth password if required to access source url. (Optional)
nameNoFile name for the generated output. (Optional)
api_keyNoPDF.co API key. If not provided, will use X_API_KEY environment variable. (Optional)
Behavior2/5

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

No annotations are provided, so the description carries full burden. It mentions conversion behavior and header/footer HTML capabilities, but lacks critical details: whether this is a read-only or destructive operation, authentication needs (beyond optional HTTP auth parameters), rate limits, error handling, or output format (e.g., PDF file returned as bytes/URL). For a tool with 13 parameters and no annotations, this is insufficient.

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

Conciseness3/5

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

The description is front-loaded with the core purpose but includes a lengthy technical reference and HTML example that may be excessive for an AI agent. While informative, the second paragraph and code block could be condensed or moved to parameter-specific documentation. It's not wasteful, but could be more streamlined.

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

Completeness3/5

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

Given the tool's complexity (13 parameters, no annotations, no output schema), the description is moderately complete. It covers conversion purpose and header/footer details but misses broader context: output behavior (e.g., returns PDF data), error cases, or performance considerations. It's adequate for basic use but lacks depth for robust agent operation.

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

Parameters4/5

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

Schema description coverage is 100%, so the baseline is 3. The description adds value by explaining header/footer parameters in detail, including HTML markup classes and an example, which clarifies semantics beyond the schema's basic descriptions. However, it doesn't cover other parameters like margins or paperSize, keeping it from a perfect score.

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 clearly states the tool's purpose: 'Convert external webpage URL to PDF.' It specifies the verb ('convert') and resource ('external webpage URL'), making the function unambiguous. However, it doesn't distinguish this tool from sibling HTML/PDF conversion tools like 'html_to_pdf' or 'document_to_pdf', which prevents a perfect score.

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 guidance on when to use this tool versus alternatives. With multiple sibling tools for PDF conversion (e.g., 'html_to_pdf', 'document_to_pdf'), there's no indication of whether this tool is for webpages specifically, if it handles dynamic content differently, or any prerequisites. The reference link is technical documentation, not usage guidance.

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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