Puts a visible signature, initials and a date on a PDF document you attach.
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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.
The PDF to look in, e.g. contract.pdf.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http pdf-sign https://pdf-sign.zovo.one/mcp
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.
| Argument | Type | Description |
|---|---|---|
| file* | object | The PDF to look in, e.g. contract.pdf. |
{
"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."
}
}
}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.
| Argument | Type | Description |
|---|---|---|
| date | string | The signing date in the user's own calendar, YYYY-MM-DD, e.g. 2026-11-04. Default: today in time_zone. |
| file* | object | The PDF to sign, e.g. lease.pdf. |
| initials | string | Initials to use, e.g. JD. Default: first letters of signer_name. |
| time_zone | string | The user's IANA time zone for today's date when no date is given, e.g. Europe/Berlin. Default America/New_York. |
| placements* | array | Where to put each mark, e.g. [{"spot":"s1","kind":"signature"},{"spot":"s2","kind":"date"}]. |
We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 8, 2026.
| date_format |
| string |
| How the date is printed, e.g. MM/DD/YYYY (default). |
| output_name | string | File name for the signed copy, e.g. lease-signed. Default: the original name plus -signed. |
| signer_name | string | 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 | boolean | true: also flatten the PDF's form fields so their current values print as page content. Default false. |
| signature_svg | string | 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. |
{
"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."
}
}
}