# PDF Form Proof (pypi · pdf-form-proof)

Fill fillable PDF forms, then prove every value is visible on the rendered page.

- Trust score: 52/100 (low)
- Change this week: −15
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- pypi · `pdf-form-proof`: 52/100 (this document), [markdown](https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof.md), [page](https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof)

## Channel facts

- Registry: `pypi`
- Package: `pdf-form-proof`
- Version: `0.1.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-04.

- **Supply Chain Security**: 50/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 0 of 30 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 11 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 572 tokens (~143/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the PDF Form Proof MCP server?

PDF Form Proof runs locally as a PyPI package, launched with uvx pdf-form-proof. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add essencealignment-pdf-form-proof -- uvx pdf-form-proof
```

### Cursor

```json
{
  "mcpServers": {
    "essencealignment-pdf-form-proof": {
      "command": "uvx",
      "args": [
        "pdf-form-proof"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "essencealignment-pdf-form-proof": {
      "command": "uvx",
      "args": [
        "pdf-form-proof"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add essencealignment-pdf-form-proof -- uvx pdf-form-proof
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "essencealignment-pdf-form-proof": {
      "type": "local",
      "command": [
        "uvx",
        "pdf-form-proof"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add essencealignment-pdf-form-proof --command uvx --arg pdf-form-proof
```

### Hermes

```yaml
mcp_servers:
  essencealignment-pdf-form-proof:
    command: "uvx"
    args: ["pdf-form-proof"]
```

### Netclaw

```json
{
  "McpServers": {
    "essencealignment-pdf-form-proof": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "pdf-form-proof"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add essencealignment-pdf-form-proof -t stdio -c uvx -a pdf-form-proof
```

### Other

```json
{
  "mcpServers": {
    "essencealignment-pdf-form-proof": {
      "command": "uvx",
      "args": [
        "pdf-form-proof"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 52, −15)

- [security regression] Malware scan: pass → unverified

### 2026-11-03 (score 67, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-31 (score 52, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-30 (score 67, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-29 (score 52, −15)

- [security regression] Malware scan: pass → unverified

### 2026-10-23 (score 67)

First indexed and scored.

## MCP tools (4)

### `pdf_form_inspect` (~71 tokens)

Inspect PDF form fields

List every fillable field in a PDF: exact name, type (text, button, choice,
signature), current value, required flag, and for checkboxes/radios the on-state
values that check them. Use the names exactly as returned when filling.

Input parameters:

- `pdf_path` (string, required)

### `pdf_form_fill` (~176 tokens)

Fill PDF form

Fill an AcroForm PDF and write a NEW file (the source is never modified and an
existing output is never overwritten). values maps exact field names to values:
strings for text fields; an on-state such as "/1" or "/Yes" (or true) to check a box,
"" or false to clear it. strict=true refuses the whole fill if any name is unknown.
finalize=true removes the XFA packet and NeedAppearances flag so viewers render the
values from their own appearance streams (fields stay editable; this is not flattening).
Returns the output SHA-256 and a read-back of every text value.

Input parameters:

- `finalize` (boolean)
- `output_path` (string, required)
- `source_pdf_path` (string, required)
- `strict` (boolean)
- `values` (object, required)

### `pdf_form_verify` (~179 tokens)

Verify filled values are visible

Render one page, OCR it, and compare with the PDF text layer. Each value gets a
verdict: VISIBLE, INVISIBLE (in the file but not on the page), RENDER-ONLY, or MISSING.
region is "page" or "x0,y0,x1,y1" as page fractions; with a region and auto=true every
word the text layer places in that region must also be legible. A tool failure
(missing poppler or tesseract, render error) returns REFUSE with the reason and makes
no finding about the document. Proves legibility only, not correctness.

Input parameters:

- `auto` (boolean)
- `dpi` (integer)
- `page` (integer)
- `pdf_path` (string, required)
- `region` (string)
- `values`

### `pdf_sha256` (~33 tokens)

SHA-256 of a file

Return the SHA-256 digest of a file so the exact output can be recorded.

Input parameters:

- `path` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof#diagnostics

## Score history

- 2026-11-04: 52
- 2026-11-03: 67
- 2026-11-02: 52
- 2026-11-01: 52
- 2026-10-31: 52
- 2026-10-30: 67
- 2026-10-29: 52
- 2026-10-28: 67
- 2026-10-27: 67
- 2026-10-26: 67
- 2026-10-25: 67
- 2026-10-24: 67
- 2026-10-23: 67

## Common questions

### What is the PDF Form Proof MCP server?

PDF Form Proof is an MCP server listed in the public MCP registry as io.github.EssenceAlignment/pdf-form-proof. Fill fillable PDF forms, then prove every value is visible on the rendered page. This page covers its PyPI package (pdf-form-proof).

### Is the PDF Form Proof MCP server safe to use?

PDF Form Proof scores 52 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the PDF Form Proof MCP server expose?

PDF Form Proof exposes 4 tools: pdf_form_inspect, pdf_form_fill, pdf_form_verify, pdf_sha256. Their descriptions and schemas cost roughly 459 tokens of context every time the server is loaded.

### Is the PDF Form Proof MCP server still maintained?

PDF Form Proof is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the PDF Form Proof MCP server under?

PDF Form Proof declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/pdf-form-proof/
- Socket report: https://socket.dev/pypi/package/pdf-form-proof
- Repository: https://github.com/EssenceAlignment/pdf-form-proof
- Changelog RSS feed: https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof.xml
- Changelog JSON feed: https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof.json
- HTML version of this page: https://verifymcp.io/servers/essencealignment-pdf-form-proof/pdf-form-proof