Gemini file editing: PDFs on mobile, other formats on the web

Google’s [October 29 announcement](https://workspaceupdates.googleblog.com/2026/10/create‑preview‑and‑edit‑files‑directly‑in‑the‑Gemini‑app.html) says Gemini can now preview and edit files in chat. PDFs are supported on web and mobile; documents, spreadsheets, slides, Markdown, TXT and code require the web. A useful starting question is whether you need to change the substance of a working file or simply review something that is ready to circulate. For example, someone preparing a project update while travelling can identify the remaining edits before promising a finished handoff. The device in their bag is a practical constraint, even when the draft already looks presentable.

The [announcement](https://workspaceupdates.googleblog.com/2026/10/create‑preview‑and‑edit‑files‑directly‑in‑the‑Gemini‑app.html) describes opening generated spreadsheets in Google Sheets, moving presentation content into Google Slides or downloading PPTX/PDF, and uploading document drafts to Drive. Consider a hypothetical project budget that will become part of a presentation. The person checking the calculations and the person presenting the decision may need different working documents. Agree on which version holds the numbers and which one communicates them. A handoff should identify the file that the next person is expected to revise, rather than leaving several plausible copies with no clear owner. Those are editorial workflow suggestions. The announcement does not establish how a particular workbook’s formulas or a presentation’s layout survive a transfer; OpenTools has not tested those outcomes. For the spreadsheet stage, OpenTools’ [spreadsheet‑tools guide](https://opentools.ai/resources/best‑ai‑spreadsheet‑tools) recommends checking formulas against a small hand‑checked sample and reconciling a known total before sharing the file.

Google [lists](https://workspaceupdates.googleblog.com/2026/10/create‑preview‑and‑edit‑files‑directly‑in‑the‑Gemini‑app.html) immediate availability for personal accounts and Workspace customers wherever Gemini is available. It says there is no feature‑specific admin control, while linking administrators to guidance on enabling or disabling the app. For a managed team, checking whether a person can use the app comes before assigning them a task inside it. Separately, agree on the intended recipient and review the actual deliverable. An accessible editing surface is one part of completing that handoff. AI‑generated conceptual illustration of choosing a device for document work. Blank screens and paper do not show Gemini, a real file or a tested output. Original artwork by OpenTools Team.