Large PDF. AI-ready files.

Prepare large PDFs for the AI you actually use.

Chunk My Doc analyzes your document, proposes a safe splitting plan, and generates organized files with instructions tailored to your selected AI.

Private document storageReview before generationBuilt for ChatGPT, Claude and Gemini

Before → after

From one large PDF to an organized AI-ready workflow.

Before

whole-document.pdf

Large, unstructured for chat windows

  • Difficult to fit safely within an AI's practical limits
  • Manual splitting risks losing structure and context
  • Trial and error to find what to upload first

Chunk My Doc process

  1. 1. Document validation
  2. 2. Structural analysis
  3. 3. Target AI selection
  4. 4. Reviewable splitting plan
  5. 5. File generation

After

  • Organized document parts
  • Clear filenames and order
  • AI-specific usage instructions
  • Downloadable generated package

The problem

Large documents were not designed for AI chat windows.

Manually dividing a substantial PDF often breaks the very structure that makes it useful. Chunk My Doc turns this preparation into a structured workflow.

Chapters or logical sections can get split in the middle

Important context can be separated from the sections that need it

File sizes end up inconsistent from one part to the next

It usually takes repeated trial and error to find what works

It's hard to know which part to upload first, and in what order

Reproducing the same result later becomes tedious

How it works

A guided workflow, from upload to AI-ready files.

  1. Step 1

    Upload your PDF

    The application validates the file and starts a private project.

  2. Step 2

    Let Chunk My Doc analyze its structure

    It identifies useful structural signals such as pages, sections, headings, or bookmarks when available.

  3. Step 3

    Choose your target AI

    Pick ChatGPT, Claude, or Gemini. The application also supports a custom configuration for advanced use.

  4. Step 4

    Review the proposed plan

    Inspect the suggested document parts before generation and adjust the available options.

  5. Step 5

    Generate and download

    Chunk My Doc produces the prepared files and the relevant usage instructions.

Benefits

Built to make document preparation feel obvious.

Preserve document structure

Split along useful boundaries when the document exposes them.

Reduce manual preparation

Turn repetitive slicing into a guided, reviewable workflow.

Adapt output to the selected AI

Recommendations and instructions are tailored to your target.

Review before generating

Inspect the plan and adjust the available options first.

Keep projects private

Documents are stored in private project storage and are only accessible through the authorized account workflow.

Organized files and instructions

Clear filenames, ordered parts, and practical usage guidance.

Use cases

Wherever a large PDF meets an AI chat window.

Research papers

Academic articles and long-form scholarly material.

Business reports

Internal documentation, plans, and reference material.

Books and manuals

Training material, handbooks, and long guides.

Legal or administrative

Preparation of dense administrative documents.

Study notes

Course packs, lecture notes, and revision material.

Technical specs

Product documentation and engineering references.

Chunk My Doc prepares documents. It does not provide legal, academic, medical, or financial advice, and it does not validate the content of the documents you upload.

Supported AI

Pick your target. Get preparation tuned to it.

The AI you select influences the preparation recommendations and the accompanying instructions.

ChatGPT

OpenAI

Claude

Anthropic

Gemini

Google

Chunk My Doc is an independent product and is not affiliated with or endorsed by OpenAI, Anthropic, or Google.

Plans

Start free. Move to Pro when you need more capacity.

Free

Get started

Everything you need to prepare a document end to end.

  • Prepare PDF documents
  • Use the core analysis and splitting workflow
  • Generate organized AI-ready files
  • Subject to the current Free plan limits
Start for free

Pro

Higher capacity

Designed for more frequent or larger workflows.

  • Higher usage capacity
  • Larger PDFs supported
  • Additional plan capacity where available
  • Same reviewable, private workflow
See full plan details

FAQ

Answers to common questions.

Turn one large PDF into an organized AI-ready workflow.

Upload your document, choose your target AI, review the plan, and generate the files you need.

Sign in