Koskamo

Zovo PDF Sign MCP

Places a visible signature, initials, and date on PDF documents by finding labeled lines or specified positions. It supports drawing signatures or typing names, checks that marks are present in the signed copy, and allows optional flattening of form fields. It is not a certified digital signature.

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Endpoint and access

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Zovo PDF Sign MCP logo, by ZovoCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-08Published by Zovo
MCP endpoint (Streamable HTTP)
https://pdf-sign.zovo.one/mcp
Vendor documentation

What its tools do

2 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (2)

2 of 2 have a description · 2 of 2 declare behavior hints · 2 of 2 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Find where I need to sign in this lease PDF
  • Sign this PDF as Jane Doe on the signature line and add today's date
  • Put my initials JD on the Initials line of this contract

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.theluckystrike/pdf-sign@1.0.0Project website

Protocol and capabilities

Server
pdf-sign 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
2 advertised
Resources
1 advertised
Resource templates
1 advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  },
  "resources": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Zovo PDF Sign places a visible signature, initials, a date or text on the user's own PDF and returns a signed copy. It is not a certified digital signature (no certificate, no identity check, no audit trail). Call find_signature_spots first to find the signature, initials, date and name lines, then sign_pdf with the chosen spots.

Tools

2 advertised

find_signature_spots — Find signature spots
Advertised by the server during the last successful anonymous check.
Advertised read-only

Use this when the user wants to sign a PDF, fill in a signature line, find where to sign, or add initials or a date to a PDF form or contract. It reads the PDF's text positions and lists each place labelled Signature, Sign here, Signed, Initials, Date or Name, each blank ____ line, and each empty signature form field, with page, x, y (points from the top-left as displayed), width and a spot id for sign_pdf. Makes no file. Up to 15 MB; the first 50 pages are searched. Does not read scanned PDFs without a text layer (then give page and position to sign_pdf). Do not use for reading or summarizing a contract.

find_signature_spots input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "file"
  ],
  "properties": {
    "file": {
      "type": "object",
      "required": [
        "download_url",
        "file_id"
      ],
      "properties": {
        "file_id": {
          "type": "string",
          "description": "ChatGPT file id, e.g. file_abc123."
        },
        "file_name": {
          "type": "string",
          "description": "Original file name if known, e.g. statement.pdf."
        },
        "mime_type": {
          "type": "string",
          "description": "Media type if known, e.g. application/pdf."
        },
        "download_url": {
          "type": "string",
          "description": "Temporary download link for the file, supplied by ChatGPT."
        }
      },
      "description": "The PDF to look in, e.g. contract.pdf."
    }
  }
}
find_signature_spots output schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "file",
    "pages",
    "pages_scanned",
    "has_text",
    "spots",
    "page_sizes",
    "warnings",
    "note"
  ],
  "properties": {
    "file": {
      "type": "string"
    },
    "note": {
      "type": "string"
    },
    "pages": {
      "type": "number"
    },
    "spots": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "id",
          "page",
          "x",
          "y",
          "width",
          "label",
          "kind",
          "source"
        ],
        "properties": {
          "x": {
            "type": "number"
          },
          "y": {
            "type": "number"
          },
          "id": {
            "type": "string"
          },
          "kind": {
            "type": "string"
          },
          "page": {
            "type": "number"
          },
          "label": {
            "type": "string"
          },
          "width": {
            "type": "number"
          },
          "source": {
            "type": "string"
          }
        },
        "additionalProperties": false
      }
    },
    "has_text": {
      "type": "boolean"
    },
    "warnings": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "page_sizes": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "page",
          "width",
          "height"
        ],
        "properties": {
          "page": {
            "type": "number"
          },
          "width": {
            "type": "number"
          },
          "height": {
            "type": "number"
          }
        },
        "additionalProperties": false
      }
    },
    "spots_count": {
      "type": "object",
      "required": [
        "shown",
        "total"
      ],
      "properties": {
        "shown": {
          "type": "number"
        },
        "total": {
          "type": "number"
        }
      },
      "additionalProperties": false
    },
    "pages_scanned": {
      "type": "number"
    }
  },
  "additionalProperties": false
}
find_signature_spots annotations
{
  "title": "Find signature spots",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
sign_pdf — Sign a PDF
Advertised by the server during the last successful anonymous check.
Advertised read-only

Use this when the user wants to sign a PDF, e-sign a document, add a signature, initials or a date to a PDF, or put their name on a signature line. It draws a visible mark on a copy of the user's PDF at found spots (ids from find_signature_spots) or at a page and position: a drawn signature (SVG path from the widget pad) or a typed name in an italic font, initials, a date in the chosen format from the user's date, or short text. It returns the signed copy as a download kept for about 1 hour and checks that each mark is in the file. It is not a certified digital signature: no certificate, identity check or audit trail. Does not fill form fields with data and does not send the document to anyone. Do not use for certificate-based digital signatures or for signing on someone else's behalf without their consent.

sign_pdf input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "file",
    "placements"
  ],
  "properties": {
    "date": {
      "type": "string",
      "maxLength": 40,
      "description": "The signing date in the user's own calendar, YYYY-MM-DD, e.g. 2026-11-04. Default: today in time_zone."
    },
    "file": {
      "type": "object",
      "required": [
        "download_url",
        "file_id"
      ],
      "properties": {
        "file_id": {
          "type": "string",
          "description": "ChatGPT file id, e.g. file_abc123."
        },
        "file_name": {
          "type": "string",
          "description": "Original file name if known, e.g. statement.pdf."
        },
        "mime_type": {
          "type": "string",
          "description": "Media type if known, e.g. application/pdf."
        },
        "download_url": {
          "type": "string",
          "description": "Temporary download link for the file, supplied by ChatGPT."
        }
      },
      "description": "The PDF to sign, e.g. lease.pdf."
    },
    "initials": {
      "type": "string",
      "maxLength": 80,
      "description": "Initials to use, e.g. JD. Default: first letters of signer_name."
    },
    "time_zone": {
      "type": "string",
      "maxLength": 60,
      "description": "The user's IANA time zone for today's date when no date is given, e.g. Europe/Berlin. Default America/New_York."
    },
    "placements": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "kind"
        ],
        "properties": {
          "x": {
            "type": "number",
            "maximum": 20000,
            "minimum": 0,
            "description": "Left edge of the mark in points from the page's left edge as displayed, e.g. 72."
          },
          "y": {
            "type": "number",
            "maximum": 20000,
            "minimum": 0,
            "description": "Baseline of the mark in points from the page's top edge as displayed, e.g. 700."
          },
          "kind": {
            "enum": [
              "signature",
              "initials",
              "date",
              "text"
            ],
            "type": "string",
            "description": "What to place, e.g. signature."
          },
          "page": {
            "type": "integer",
            "maximum": 300,
            "minimum": 1,
            "description": "1-based page number when no spot is given, e.g. 1."
          },
          "spot": {
            "type": "string",
            "maxLength": 10,
            "description": "A spot id from find_signature_spots, e.g. s2. Use this or page + x + y."
          },
          "value": {
            "type": "string",
            "maxLength": 800,
            "description": "Text for kind text (up to 200 characters, e.g. Jane Doe), a YYYY-MM-DD date for kind date, or initials for kind initials (up to 8, e.g. JD)."
          },
          "width": {
            "type": "number",
            "maximum": 500,
            "minimum": 10,
            "description": "Room for the mark in points, e.g. 180. Default: the spot width, else 180 for a signature."
          },
          "height": {
            "type": "number",
            "maximum": 150,
            "minimum": 6,
            "description": "Height of the mark in points, e.g. 30. Default 30 for a signature, 14 otherwise."
          }
        }
      },
      "maxItems": 50,
      "minItems": 1,
      "description": "Where to put each mark, e.g. [{\"spot\":\"s1\",\"kind\":\"signature\"},{\"spot\":\"s2\",\"kind\":\"date\"}]."
    },
    "date_format": {
      "enum": [
        "MM/DD/YYYY",
        "DD/MM/YYYY",
        "YYYY-MM-DD",
        "DD.MM.YYYY",
        "Month D, YYYY",
        "D Month YYYY"
      ],
      "type": "string",
      "description": "How the date is printed, e.g. MM/DD/YYYY (default)."
    },
    "output_name": {
      "type": "string",
      "maxLength": 200,
      "description": "File name for the signed copy, e.g. lease-signed. Default: the original name plus -signed."
    },
    "signer_name": {
      "type": "string",
      "maxLength": 800,
      "description": "The signer's name, up to 80 characters, e.g. Jane Doe. Typed signatures are drawn in an italic font; also used for initials."
    },
    "flatten_form": {
      "type": "boolean",
      "description": "true: also flatten the PDF's form fields so their current values print as page content. Default false."
    },
    "signature_svg": {
      "type": "string",
      "maxLength": 20480,
      "description": "A drawn signature as SVG path data with absolute M, L, C, Q, Z only (max 20 KB), e.g. M10 40 C20 10 40 10 50 40. The widget pad sends this."
    }
  }
}
sign_pdf output schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "file",
    "pages",
    "marks",
    "marks_found",
    "text_found",
    "text_expected",
    "flattened",
    "warnings",
    "downloads",
    "note"
  ],
  "properties": {
    "file": {
      "type": "string"
    },
    "note": {
      "type": "string"
    },
    "marks": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "n",
          "page",
          "x",
          "y",
          "kind",
          "shown_as",
          "checked"
        ],
        "properties": {
          "n": {
            "type": "number"
          },
          "x": {
            "type": "number"
          },
          "y": {
            "type": "number"
          },
          "kind": {
            "type": "string"
          },
          "page": {
            "type": "number"
          },
          "checked": {
            "type": "string"
          },
          "shown_as": {
            "type": "string"
          }
        },
        "additionalProperties": false
      }
    },
    "pages": {
      "type": "number"
    },
    "warnings": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "date_used": {
      "type": "string"
    },
    "downloads": {
      "type": "object",
      "required": [
        "pdf"
      ],
      "properties": {
        "pdf": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "flattened": {
      "type": "boolean"
    },
    "text_found": {
      "type": "number"
    },
    "marks_count": {
      "type": "object",
      "required": [
        "shown",
        "total"
      ],
      "properties": {
        "shown": {
          "type": "number"
        },
        "total": {
          "type": "number"
        }
      },
      "additionalProperties": false
    },
    "marks_found": {
      "type": "number"
    },
    "text_expected": {
      "type": "number"
    }
  },
  "additionalProperties": false
}
sign_pdf annotations
{
  "title": "Sign a PDF",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

1 advertised

pdf-sign-widget — Zovo PDF Sign view

Advertised by the server during the last successful anonymous check.

Interactive view for Zovo PDF Sign.

pdf-sign-widget URI
ui://widget/pdf-sign-v1-1.0.0-6e48c1c8ad10f03ab5d7b6989ee9345978a156066a9d89f5ec2361b9488a1bae.html

MIME type: text/html;profile=mcp-app

pdf-sign-widget-legacy — Zovo PDF Sign view (previous versions)

Advertised by the server during the last successful anonymous check.

pdf-sign-widget-legacy URI template
ui://widget/pdf-sign-{version}.html

MIME type: text/html;profile=mcp-app

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
741 ms
95th percentile latency
741 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 741 ms · metadata changed · 2 tool(s), 1 resource(s), 1 resource template(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http zovo-pdf-sign-mcp https://pdf-sign.zovo.one/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add zovo-pdf-sign-mcp --url https://pdf-sign.zovo.one/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable zovo-pdf-sign-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "zovo-pdf-sign-mcp": {
      "url": "https://pdf-sign.zovo.one/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "zovo-pdf-sign-mcp": {
      "type": "streamableHttp",
      "url": "https://pdf-sign.zovo.one/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start zovo-pdf-sign-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "zovo-pdf-sign-mcp": {
      "type": "http",
      "url": "https://pdf-sign.zovo.one/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http zovo-pdf-sign-mcp https://pdf-sign.zovo.one/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://pdf-sign.zovo.one/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "zovo-pdf-sign-mcp": {
      "serverUrl": "https://pdf-sign.zovo.one/mcp"
    }
  }
}

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