PDF Modifier MCP Server

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

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Status

Pod has not dialled PDF Modifier yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

Connect

Published as pdf-modifier-mcp on pypi. Runs locally.

Known issues

36 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

Most discussed

feat(core): advanced font support and custom font paths

Enhance _get_font_properties to better detect font attributes. Allow users to provide a path to a custom font file for replacements. Investigate extracting embedded fonts.

Read the thread · 2026-01-14 · closed · 2 comments

feat(core): file size validation before processing

What

No max file size check before processing. Large PDFs could cause OOM.

Why

P0 — security and stability. A malicious or accidental large PDF could crash the server.

Acceptance Criteria

Validate file size before opening with fitz
Configurable max size (default 100MB)
Return clear error message with size and limit
Apply to: CLI, MCP, and Web upload

Already partially handled in analyzer.py and modifier.py (max_file_size param)
Need to expo

Read the thread · 2026-06-20 · closed · 1 comment

feat(ai): NaN Cloud AI layer with model router + throttle

AI-001: AI-Powered Document Detection

What

Add AI capabilities: detect document fields, classify document types, and redact PII automatically using NaN Cloud models.

Why

Manual field detection is tedious
PII redaction needs to be automatic
Document classification enables smart forms
Differentiates from basic text editors

Models Used

mimo-v2.5: Vision, tool calling, reasoning (OCR, detection)
qwen3.6: Fast text tasks (classification, translation)
Fallback: mimo → q

Read the thread · 2026-06-20 · closed · 1 comment

feat(mcp): expose pdfs as resources

Implement MCP Resources interfa to allow the LLM to browse and 'subscribe' to PDF files in the mounted data directory. This allows the model to read content directly as a resource uri 'pdf://filename.pdf'.

Read the thread · 2026-01-14 · closed · 1 comment

feat(core): metadata editor

Add functionality to read and update standard PDF metadata fields (Title, Author, Subject, Keywords) via CLI and MCP.

Read the thread · 2026-01-14 · closed · 1 comment

Most recent

feat(web): improve PDF preview — intelligent element grouping + sync

Summary

The PDF preview now renders correctly with zoom, page jump, and text highlighting, but the element detection in the sidebar is too granular. The analyzer returns individual text fragments rather than semantically grouped elements (e.g., "Hello" and "World" on the same line should be one element "Hello World").

Remaining work

Group consecutive text elements by position (same line, same font, similar spacing) → merge into one sidebar entry
**Sync scroll positio

Read the thread · 2026-08-05 · closed · 0 comments

feat(web): keyboard shortcuts

Implementar keyboard shortcuts: Ctrl+Z undo, Ctrl+Shift+Z redo, Ctrl+S download, Ctrl+O open file, Escape cancelar. Mostrar shortcuts en tooltips.