PDF Modifier

Modify PDF text, replace with regex, and analyze layout while preserving fonts.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "pdf-modifier": {
      "command": "uvx",
      "args": [
        "pdf-modifier-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

PDF Modifier MCP

CLI + MCP server + Web UI for PDF text replacement with font style preservation.

Quick start

Terminal

pip install pdf-modifier-mcp

# CLI
pdf-mod modify input.pdf output.pdf -r "Draft=Final"

# MCP server (for Claude/Cursor/Codex)
claude mcp add -s user pdf-modifier -- uvx pdf-modifier-mcp

Interfaces

Interface	Description	Run
CLI	`pdf-mod` — batch jobs, scripting, CI pipelines	`make run cli ARGS="..."`
MCP Server	`pdf-modifier-mcp` — AI agents edit PDFs	`make run mcp`
Web UI	FastAPI + SvelteKit — drag & drop, preview, replace	`make up` (Docker) or `make run api` + `make run frontend`

Features

Text replacement — find and replace with font style preservation (family, weight, size, color)
Regex support — pattern-based bulk replacements (--regex)
Hyperlinks — create clickable links or neutralize existing ones
Batch processing — apply same replacements to multiple files
Web UI — drag & drop PDF upload, structure browser, page preview with zoom, text highlighting
MCP tools — read_pdf_structure, inspect_pdf_fonts, list_pdf_hyperlinks, modify_pdf_content

Development

bash

# Setup
make setup

# Run tests
make test

# Full check (lint + type + test)
make check

# Start dev stack (Docker)
make up
# API: http://localhost:8000 | Web: http://localhost:8080

# Start servers locally
make run api          # FastAPI dev server
make run frontend     # SvelteKit dev server

Documentation

License

MIT

Read the full README →View source on GitHub →

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Frequently Asked Questions about PDF Modifier

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "pdf-modifier": { "command": "npx", "args": ["-y", "PDF Modifier"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

36Quality signal: Fair · 36/100How this signal is calculated ▾

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Documentation & tools15/30

Adoption & activity2/15

Community engagement0/10

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to PDF Modifier →Install in Claude Desktop Install in Cursor Install in VS Code