Privacy principles
- No account. The product description states PDF JustFit requires no account.
- No ads. The product description states there is no advertising.
- No tracking. The product description states PDF JustFit does not track users.
- No document upload. According to the product description, documents are never uploaded; questions and answers stay on your iPhone and iPad.
- Local processing. Compression, conversion, OCR and AI all run on-device.
- Network used only for model weights. The network is used to download AI model weights, not to send documents to a server.
Where your document goes
This is the full path of a question asked about a PDF in PDF JustFit. Every step happens on the device. For the AI-specific detail, see On-Device AI Privacy.
- User PDF The document stays on the device.
- Device Processing begins locally.
- OCR Scanned pages recognised on-device.
- Index Document content indexed locally.
- Retrieval Relevant content selected for the question.
- AI inference The local model generates the answer.
- Answer Returned with a page citation.
What the network is used for
- Network Used to download AI model weights.
- Documents Not uploaded, according to the product description.
Precise wording matters here. The accurate statement is that AI document chat works offline after the AI model has been downloaded. The recommended on-device model is about 1 GB and is downloaded once. That is not the same as claiming the app requires no download at all.
Document processing
Compression, conversion, OCR and AI document interaction are described as on-device operations. Nothing is written back to your Photos or Files unless you choose to save it there.
AI processing
AI document chat uses open models including Gemma 3 and Qwen3. The model runs locally, and answers are returned with page citations. Because the model runs on the device, the document does not need to leave it in order to be queried.
Model downloads
The AI model is downloaded once, which is the purpose of the network access described in the product description. After the model is available on the device, AI document chat can work without an internet connection.
Analytics and advertising
The product description states there are no analytics and no advertising in PDF JustFit. The App Store privacy label is listed as "Data Not Collected".
About the App Store privacy label
"Data Not Collected" is a declaration the developer makes to Apple. Apple states that privacy information shown on App Store product pages is provided by the developer and has not been verified by Apple. This page therefore attributes the claim to the developer's disclosure rather than presenting it as an independent audit.
Frequently asked questions
Does PDF JustFit upload my PDFs?
According to the current product description, PDF JustFit does not upload your documents. Compression, conversion, OCR and AI are designed to run on-device.
What is the network used for in PDF JustFit?
According to the product description, the network is used for one thing only — downloading AI model weights — and never for your documents.
Does PDF JustFit require an account?
No. According to the product description, PDF JustFit requires no account.
Does PDF JustFit collect data?
The App Store privacy label for PDF JustFit is listed as "Data Not Collected". Apple states that privacy information on App Store product pages is provided by the developer and has not been verified by Apple.
Does PDF JustFit show ads or track me?
According to the product description, PDF JustFit has no advertising and does not track users.
Does AI chat send my questions to a server?
According to the product description, AI document interaction runs on-device and questions and answers stay on your iPhone and iPad. The network is used to download model weights.