Can you chat with a PDF without uploading it?
Yes. Inscribe reads and answers questions about your PDFs entirely on-device, so the file never leaves your iPhone, iPad, or Mac. Import the document, ask a question in plain language, and get an answer that cites the page it came from. Nothing is sent to a cloud server to make this work.
Why uploading a confidential PDF is a problem
Most "chat with PDF" tools work by sending your file to their servers, running it through a cloud model, and returning an answer. That is fine for a public datasheet. It is a real problem for a signed contract, a medical record, a board deck, or anything under an NDA. Once a file leaves your device, you are trusting a stranger's retention policy, their security, and what they do with your data later.
On-device Q&A removes that step. Reading the file, searching across it, and drafting the answer all happen on your hardware. There is no upload, so there is no copy of your contract sitting in someone else's account.
How on-device PDF chat works in Inscribe
Inscribe imports the PDF, extracts the text (running OCR on scanned pages and images), and builds a private index on your device. When you ask a question, it finds the relevant passages and drafts an answer using an on-device model, either Apple Intelligence or the downloadable Qwen 3 offline model. You can ask follow-ups, and it keeps the thread in context.
Because the index is local, search is fast and works in airplane mode. You can be on a plane, in a hospital basement, or on a train with no signal and still ask your documents questions.
What can you ask a PDF?
Anything you would ask a person who read it. Summarize the document in five bullets. Pull every deadline and dollar figure. Explain a termination clause in plain English. List the action items. Find where a report mentions a specific name or product. Inscribe answers from the text and points you to the source so you can check the original wording.
| Feature | Cloud chat-with-PDF tools | Inscribe |
|---|---|---|
| Where the file is processed | Uploaded to their servers | On your device |
| Works offline | No | Yes |
| Account required | Usually | No |
| Scanned pages and images | Sometimes | Yes, with on-device OCR |
| Ask across many documents | Limited | Yes, your whole library |
Which file types work?
Inscribe reads PDF, Word, Excel, PowerPoint, plain text, and images. Scanned documents and photos of pages go through on-device OCR first, so a contract you photographed is just as searchable as a digital one. Everything is processed locally.
How to chat with a PDF offline
The flow takes under a minute. You import the document, let Inscribe read and index it on-device, then type your question the way you would ask a colleague. The answer comes back with a pointer to the passage it used, and you can keep asking follow-ups in the same thread.
Ask across your whole library, not just one file
One PDF is the starting point. Ask Inscribe lets you query across everything you have imported at once: notes, transcripts, PDFs, images, and projects. Ask "what did the vendor agree to on pricing" and it pulls from the contract, the meeting transcript, and the email screenshot together, with citations, all on-device. It works like a private second brain that never phones home.
When on-device chat matters most
Lawyers reading discovery documents. Clinicians handling patient records. Founders reviewing term sheets. Anyone under an NDA. In each case the value is the same: you get the answer without the file ever leaving your hands. For ordinary documents it is simply faster and works without a signal.
Related reading
Frequently Asked Questions
Can I chat with a PDF offline?
Yes. Inscribe reads and answers questions about PDFs on-device, so it works in airplane mode with no internet. The file is never uploaded, and there is no account to create.
Is chatting with a PDF private?
In Inscribe, yes. Reading, search, and answers all run on your device with no cloud AI provider, so confidential files stay on your iPhone, iPad, or Mac.
Can it read scanned PDFs and images?
Yes. Inscribe runs OCR on scanned pages and photos on-device, so you can ask questions about documents that are images rather than digital text.
Can I ask questions across more than one document?
Yes. Ask Inscribe queries your whole library at once, including notes, transcripts, PDFs, and images, and returns answers with citations, all on-device.
Get Inscribe
Private, on-device transcription with AI summaries and cross-library Q&A. Works on iPhone, iPad, and Mac.
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