pdfia MCP server

• Registry namecom.pdfia/pdf-toolsverified in the MCP registry

The registry name sits under pdfia.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-25
• Tools10
• Server calls itselfpdfia
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 357 ms.

• Its tools do merge multiple PDFs into one file; split a PDF by page ranges, but not compress PDF file size with presets.
• Checked on 3 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
• What an agent can do with it2 of 3 use cases
• Answeredmeasuring3 of the 7 daily checks it takes to print a share
• Median first answer222 ms
• Space in an agent's context≈ 1,068 tokensthe definitions of all its tools (10), which an agent carries on every turn
• Tool definitionsB · 80 of 100
• Typed results0 of 10 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 2 of 10
• Not saying whether it only reads or can destroy: 10 of 10

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• merge_pdfs

  Merge multiple PDF files into one, in the order given. Returns the merged PDF as base64.

• split_pdf

  Split a PDF into parts. Provide ranges like "1-3, 5, 8-10" (each comma group becomes one output PDF), or omit ranges to get every page as its own PDF. Returns base64 files.

• extract_pages

  Extract the given pages into a new PDF (original order). Returns base64.

• remove_pages

  Delete the given pages from a PDF. Returns the remaining document as base64.

• rotate_pdf

  Rotate pages clockwise by 90, 180, or 270 degrees. Rotates all pages unless a page list is given. Returns base64.

• watermark_pdf

  Stamp a diagonal text watermark (e.g. "CONFIDENTIAL", "DRAFT") across every page. Returns base64.

• add_page_numbers

  Stamp page numbers onto every page of a PDF. Returns base64.

• get_pdf_metadata

  Read a PDF's document properties (title, author, subject, keywords, creator, producer, dates, page count).

• set_pdf_metadata

  Rewrite a PDF's document properties. Pass empty strings to strip identifying metadata before sharing. Returns base64.

• flatten_pdf

  Flatten fillable form fields into permanent page content so answers can't be edited. Returns base64.