A lot of business knowledge sits in designed PDFs, locked Word files and messy shared docs. When the AI reads a designed PDF, columns, page numbers and footers can get mixed into the text. This lesson shows three simple tools that avoid that: plain text files, a log, and dated snapshots.
The mistake most people make
They upload a designed brochure and expect the AI to pick out small figures from tables and footnotes.
“A business owner uploaded an 18-page brochure with three-column layouts and asked for a summary of the warranty terms.”
“The AI mixed up the warranty periods for the domestic range and the export range.”
How it works: the pilot's logbook
An IndiGo pilot at Bengaluru airport doesn't read a glossy magazine before take-off. They open a logbook with the same columns every time: date, aircraft, route, fuel, defects, signature. It is short and leaves no room for doubt. Plain text with simple headings does the same job for the AI.
Three tools
1. Plain text with simple marks
Use # for a heading, - for a bullet and | to make a table. This style is called Markdown. You and the AI both read it easily.
2. A log of bad answers
A running file where you paste each bad answer and the fix you made. After a month it shows where your requests need more detail.
3. Dated snapshots
One file that records the state of things on a given day, such as 'stock-2026-09.md'. The AI gets exact starting figures and knows how old they are.
Habits
Turn my notes from this week into a short snapshot I can give the AI later. Here are the notes, messages and updates: """ [Paste this week's notes, chat messages or status emails here] """ Use these sections, in plain text with simple headings: # Snapshot · [today's date] ## 1. Key figures (as a table) ## 2. Work in progress and where it stands ## 3. What's stuck, and who has to decide ## 4. Things the AI should assume Use only what is in the notes. If a figure or owner is missing, write [CHECK]. No opening or closing chat.
Scattered notes become one dated page you can paste into any later request.
Why does plain text usually work better than a designed PDF when you give the AI a document?
Show the answer
Plain text has clear headings and tables and nothing else. A designed PDF has columns, footers and layout that can get mixed into the text when it is read.