Open a PDF in 2026 and there is a good chance an AI assistant offers to summarise it. Adobe Acrobat has AI Assistant, Microsoft Edge and Microsoft 365 have Copilot, Google Drive and Chrome have Gemini, and many other readers have added their own. These are genuinely useful, and they all raise the same question: where does my document go when I click "summarise"?
What usually happens when you use an AI feature
In most cases:
- The text of the document (and sometimes images of pages) is sent to the provider's cloud.
- A large language model processes it and returns an answer.
- The provider's terms decide whether that content is stored, for how long, and whether it can be used to improve models.
Business and enterprise plans usually promise that content is not used for training and may offer data residency. Consumer and free plans vary more.
Settings to check
Adobe Acrobat and Reader
- Generative AI features can be turned off in Preferences. Organisations can disable them centrally.
- Check whether your account is a personal or business plan, since terms differ.
Microsoft Edge and Microsoft 365
- In Edge, Copilot's access to page content can be controlled in Settings → Copilot (wording varies by version).
- In Microsoft 365 business plans, Copilot runs within your tenant's data protections; your admin controls availability.
Google Drive, Chrome and Gemini
- Gemini in Drive is controlled by Workspace admins for business accounts.
- For personal accounts, review Gemini Apps Activity to control whether conversations are saved and reviewed.
Third-party "chat with PDF" sites
- Read the privacy policy before uploading. Look for retention periods and training use.
Settings move with each update, so check your own version rather than relying on screenshots in old articles.
A simple policy for yourself or your team
| Document type | AI features |
|---|---|
| Public reports, published research, brochures | Fine |
| Internal non-sensitive notes | Fine on a business plan with no-training terms |
| Contracts, HR files, financials | Only on approved business tools, or not at all |
| Medical, legal privilege, regulated personal data | Avoid cloud AI unless explicitly approved |
When you do not need AI at all
Many tasks people now reach for AI to do are simpler without it: signing, filling a form, merging, splitting, redacting a name. Doing them in a tool that processes files locally avoids the question entirely. A browser editor such as Docento.app handles these tasks without uploading the document.
Options for AI without the cloud
If you want AI summaries of sensitive documents, consider local models running on your own computer. Some PDF tools now let you connect a locally running model. See local AI vs cloud AI for PDFs.
Takeaway
AI features are now on by default in many PDF tools. Spend five minutes checking which plan you are on and what it does with your documents, and turn AI off where the paperwork is sensitive. For the full risk picture, see risks of using AI on confidential PDFs.
