Google's latest Gemini announcements tackle two different parts of working with AI: correcting the file it makes and checking the material it draws from. The Gemini app now lets you edit files inside a conversation, while Gemini Notebook is adding a free textbook catalog.
That makes a useful pairing for this Daily Geek Drop. A neat document and a cited answer solve different problems. One helps you shape a deliverable; the other helps you trace an explanation. Neither should be mistaken for a guarantee that the work is correct.
Fix the document without another round trip
In its announcement of in-chat file editing, Google says you can generate a file, preview it, expand it to full screen and type changes directly. You can also highlight text to ask questions or request revisions, rather than describing the same paragraph again in a fresh prompt.
There’s an important device split. PDF preview and editing work on the web and mobile. The other listed formats, including Google Docs, Sheets, slide decks, Markdown, text and code, are supported on the web only. Google says the capabilities are available to all users in the languages supported by the Gemini app.
The practical benefit is the shorter correction loop. If a draft has the right structure but a clumsy introduction, you can fix that introduction yourself. You don't have to ask the model to regenerate a whole page and then check whether it changed something you wanted to keep.
For a document you're going to share, separate the editing pass from the accuracy pass. First decide whether it says what you intended. Then check names, numbers and supporting material. Making the words easier to change doesn't establish where they came from.
Follow the textbook citation before trusting the summary
The separate Gemini Notebook textbook announcement adds hundreds of titles from providers in the U.S. and India, including OpenStax, Open Textbook Library and S Chand Publishing, at no charge. Google directs users to Add sources, then Textbooks, to browse the available catalog.
Google says answers are grounded in the selected textbook, with inline citations and links to the original source. Notebook can also turn that material into study guides, quizzes and flashcards. That makes the source passage part of the workflow rather than something you have to hunt for after reading a summary.
Start by checking that the available book matches your course and edition. A useful explanation from a different text may still use different notation or organize a topic differently. When a generated answer surprises you, open its citation and read the surrounding passage before building your notes around it.
These are separate announcements, not a promise that every citation survives an automatic journey from Notebook into an edited Gemini document. If you move material between tools, carry the references with it and check them again in the finished file.
Use the new controls to stay involved: inspect the source behind an explanation, make the changes you actually want, and review the final document before treating it as finished.