Best Claude Apps

PDF Tools Claude connector

Open any PDF already on your computer and work with it: read and search it in an interactive viewer, fill and sign forms, extract text and data, merge, split, and compare documents. Your files never leave your machine.

Add PDF Tools to Claude

Open in Claude

Claude Desktop → Settings → Extensions → PDF Tools

Step-by-step setup below All setup steps

PDF Tools in Claude at a glance

Reads
24 tools
Pdfs, signatures, profiles and 15 more
Creates & edits
8 tools
Pdfs, signatures, profiles and 4 more
Deletes
Nothing
No tool name suggests deleting

Counts come from the tool names in the official listing. See every tool

How a request travels Illustration, not a screenshot
  1. 1 · You ask

    “Find PDF Tools pdf texts about [a topic].”

  2. 2 · Claude calls

    search_pdf_text

    Finds pdf texts that match what you ask for

  3. 3 · Runs locally

    Your computer

    Through the Claude desktop app

  4. 4 · Answer

    Reply in the chat

    Write tools can be set to ask you first

The prompt is our example and the tool is one from PDF Tools’s list. Claude chooses tools itself, so real calls can differ.

Works in Claude Desktop for macOS Claude Desktop for Windows

How to add PDF Tools to Claude

PDF Tools docs

Claude desktop app macOS · Windows

  1. 1 Open the Claude desktop app and go to Settings → Extensions → Browse extensions.
  2. 2 Find PDF Tools, click Install and fill in any settings it asks for.
  3. 3 Start a new chat and check PDF Tools is switched on in the tools menu.

Desktop extensions run on your computer, so they do not work on claude.ai in the browser or on mobile.

PDF Tools MCP tools

43

24 read, 8 write, 11 unclear. The official listing gives tool names only, so the text beside each name is our summary of it, not the developer’s wording.

  • Pdfs 5 tools

    • list_pdfs Pulls up a list of pdfs (our summary)
    • validate_pdf Validates a pdf (our summary)
    • compare_pdfs Compares pdfs (our summary)
    • get_pdf_info Opens one pdf with its details (our summary)
    • merge_pdfs Writes Merges pdfs (our summary)
  • Signatures 4 tools

    • list_signatures Pulls up a list of signatures (our summary)
    • load_signature Opens one signature with its details (our summary)
    • create_signature Writes Adds a new signature (our summary)
    • apply_signature Writes Applies a signature (our summary)
  • Profiles 3 tools

    • load_profile Opens one profile with its details (our summary)
    • list_profiles Pulls up a list of profiles (our summary)
    • save_profile Writes Saves a profile (our summary)
  • Active documents 2 tools

    • get_active_document Opens one active document with its details (our summary)
    • set_active_document Writes Edits an existing active document (our summary)
Show 28 more groups · 29 tools, 14 that change data · bulk fill csvs, detect signature zones, display pdfs, extract csvs, fill pdfs, fill profiles, page plans, prepare signing packets, reorder pdf pages, reveal finders, rotate pdf pages, signature fields, split pdfs, texts, pdf pages, allowed directories, page analysis, pdf accessibilities, pdf contents, pdf fields, pdf identities, pdf layouts, pdf markdowns, pdf regions, pdf resource uris, pdf texts, pdf urls, table proposals
  • Bulk fill csvs 1 tool

    • No read tools
    • bulk_fill_from_csv Unclear
  • Detect signature zones 1 tool

    • No read tools
    • detect_signature_zones Unclear
  • Display pdfs 1 tool

    • No read tools
    • display_pdf Unclear
  • Extract csvs 1 tool

    • No read tools
    • extract_to_csv Unclear
  • Fill pdfs 1 tool

    • No read tools
    • fill_pdf Unclear
  • Fill profiles 1 tool

    • No read tools
    • fill_with_profile Unclear
  • Page plans 1 tool

    • No read tools
    • apply_page_plan Writes Applies a page plan (our summary)
  • Prepare signing packets 1 tool

    • No read tools
    • prepare_signing_packet Unclear
  • Reorder pdf pages 1 tool

    • No read tools
    • reorder_pdf_pages Unclear
  • Reveal finders 1 tool

    • No read tools
    • reveal_in_finder Unclear
  • Rotate pdf pages 1 tool

    • No read tools
    • rotate_pdf_pages Unclear
  • Signature fields 1 tool

    • No read tools
    • add_signature_field Writes Adds a new signature field (our summary)
  • Split pdfs 1 tool

    • No read tools
    • split_pdf Unclear
  • Texts 1 tool

    • No read tools
    • apply_text Writes Applies a text (our summary)
  • Pdf pages 2 tools

    • read_pdf_pages Pulls up a list of pdf pages (our summary)
    • render_pdf_page Renders a pdf page (our summary)
    • None
  • Allowed directories 1 tool

    • get_allowed_directories Pulls up a list of allowed directories (our summary)
    • None
  • Page analysis 1 tool

    • get_page_analysis Pulls up a list of page analysis (our summary)
    • None
  • Pdf accessibilities 1 tool

    • inspect_pdf_accessibility Opens one pdf accessibility with its details (our summary)
    • None
  • Pdf contents 1 tool

    • read_pdf_content Opens one pdf content with its details (our summary)
    • None
  • Pdf fields 1 tool

    • read_pdf_fields Pulls up a list of pdf fields (our summary)
    • None
  • Pdf identities 1 tool

    • get_pdf_identity Opens one pdf identity with its details (our summary)
    • None
  • Pdf layouts 1 tool

    • read_pdf_layout Opens one pdf layout with its details (our summary)
    • None
  • Pdf markdowns 1 tool

    • convert_pdf_to_markdown Converts a pdf markdown (our summary)
    • None
  • Pdf regions 1 tool

    • render_pdf_region Renders a pdf region (our summary)
    • None
  • Pdf resource uris 1 tool

    • get_pdf_resource_uri Opens one pdf resource uri with its details (our summary)
    • None
  • Pdf texts 1 tool

    • search_pdf_text Finds pdf texts that match what you ask for (our summary)
    • None
  • Pdf urls 1 tool

    • fetch_pdf_from_url Opens one pdf url with its details (our summary)
    • None
  • Table proposals 1 tool

    • verify_table_proposal Verifies a table proposal (our summary)
    • None

Read or write is our reading of each name. List checked 2026-10-20; developers can change tools at any time.

Things to ask Claude with PDF Tools

Our suggestions, one for each kind of tool PDF Tools offers. Not from Open Document Alliance or Anthropic. Fill in the [brackets].

  • Find PDF Tools pdf texts about [a topic].

    uses search_pdf_text
  • Create a PDF Tools signature for [what it is about].

    uses create_signature
  • Update the PDF Tools active document [name or link]: [what to change].

    uses set_active_document
  • Turn these notes into PDF Tools signatures, one per action item: [paste notes].

    uses create_signature
  • Open the PDF Tools pdf [name or link] and give me the key points.

    uses get_pdf_info
  • Create a PDF Tools signature field for [what it is about].

    uses add_signature_field

Security and access

Where requests go, whose account Claude uses, and what you control.

Runs

On your computer

A desktop extension runs locally through the Claude desktop app instead of on a remote server.

Control

You approve write tools

In Claude’s connector settings you can choose, tool by tool, whether Claude must ask before using it. Write tools are marked in the list above. See write tools

Anthropic’s directory notes that it does not control which tools a developer exposes and cannot guarantee they work as intended or stay the same. Connect connectors you trust.

Reviews

No reviews yet. Used PDF Tools with Claude? Tell others how it went.

Honest reviews only. We never pay for or edit ratings.

    Questions people ask

    What does the PDF Tools connector do in Claude?

    PDF Tools turns Claude Desktop into a complete PDF workstation with local file operations. Claude can fetch PDFs from URLs, inspect them visually, fill forms, manage pages, add signature/date zones, apply local signatures or text, extract structured data, and return document content to the selected MCP host for analysis. This package targets Claude Desktop and other local MCP hosts today. It does not yet include a remote Claude/Cowork connector. **Interactive PDF Viewer:** • View PDFs with page navigation, zoom, search, text selection, and fullscreen • See form fields in a sidebar with fill status • Use visual page management to reorder, rotate, and remove pages before saving • Switch into Sign mode to work with signature/date zones on the PDF **Sign Mode & Local Signatures:** • Detect signature, initials, printed-name, and date zones with visible coordinates Claude can reason from • Draw or reuse saved local signatures • Place signatures, dates, or other text on detected or custom zones • Inspect a region, preview it, and turn it into a typed signing zone when the automatic detector is not enough • Keep edits local, with active-document tracking and automatic backup behavior for same-file mutations **URL-to-PDF Workflows:** • Fetch PDFs from HTTP(S) URLs to the user's local machine, including cases where Claude's WebFetch is blocked • Open downloaded PDFs immediately in the viewer for fill, sign, page management, extraction, or analysis • Use page-bounded reads, text search, page renders, and region renders instead of one brittle all-document operation **Forms & Reusable Profiles:** • Fill W-9s, 1099s, rental applications, waivers, and any fillable PDF • Save personal or business details as reusable profiles • List, load, and apply saved profiles so repeated forms take seconds instead of minutes • Bulk fill many PDFs from CSV data and validate required fields before submission **Page Organization Tools:** • Merge multiple PDFs into one document • Split PDFs by exact page ranges or regular intervals • Rotate and reorder pages, or apply a full page plan in one pass • Keep the original intact by saving organized output as a new file **Extraction, Rendering & Analysis:** • Read existing PDF text layers for summarization, question answering, and research workflows • Read specific page ranges and search PDF text with page-numbered snippets • Convert supported born-digital page ranges to deterministic Markdown with explicit coverage gaps • Render full pages or bounded regions to PNG for host/model vision on scanned or image-heavy documents • If a selected `read_pdf_content` extraction has no text, return a rendered image of page 1 when available • Keep rendering and text recognition distinct: page and region renders are raster images, not OCR text • Treat mixed text/raster documents and raster pages after page 1 as potentially unrecognized by broad text reads • Extract structured data to CSV • Inspect page-level details like orientation, text presence, images, and likely blank pages • Review metadata such as page count, dimensions, form fields, and file size **Local file operations and host-aware privacy:** PDF Tools reads, renders, edits, and saves files on the user's machine and does not upload them to a separate PDF service. Text, images, or metadata returned through MCP may be processed under the selected host or model provider's data terms. Claude Desktop users choose which folders PDF Tools may read from or write to. **Works with many PDF types:** Forms, contracts, research papers, technical manuals, invoices, financial statements, scanned documents, municipal packets, and encrypted PDFs. The local runtime does not currently bundle OCR; optional local OCR remains planned rather than shipped. **Best for:** People who need more than a viewer: operators processing forms, lawyers organizing contracts, accountants handling tax documents, researchers reviewing papers, and anyone who wants local PDF file operations with their chosen MCP host.

    Is the PDF Tools connector official?

    It is made by Open Document Alliance and carries the Anthropic verified mark in Anthropic’s directory. This site is independent and lists it from the official directory.

    How do I install PDF Tools in Claude?

    PDF Tools is a desktop extension. It runs on your computer through the Claude desktop app: open Settings → Extensions → Browse extensions, find PDF Tools and install it.

    Can Claude change or delete my PDF Tools data?

    Judging by tool names, 8 of its 43 tools can change data. The other 24 only read. In Claude you can choose, per tool, whether Claude must ask before using it.

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