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. Document validation
- 2. Structural analysis
- 3. Target AI selection
- 4. Reviewable splitting plan
- 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.
- Step 1
Upload your PDF
The application validates the file and starts a private project.
- Step 2
Let Chunk My Doc analyze its structure
It identifies useful structural signals such as pages, sections, headings, or bookmarks when available.
- Step 3
Choose your target AI
Pick ChatGPT, Claude, or Gemini. The application also supports a custom configuration for advanced use.
- Step 4
Review the proposed plan
Inspect the suggested document parts before generation and adjust the available options.
- 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
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 startedEverything 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
Pro
Higher capacityDesigned for more frequent or larger workflows.
- Higher usage capacity
- Larger PDFs supported
- Additional plan capacity where available
- Same reviewable, private workflow
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.