If your "topic" is actually a PDF guide about Ubuntu that you need to get under 10MB, use Ask Ubuntu's suggestion for the Ghostscript tool:
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allows you to compress the entire filesystem. It is a read-only, highly compressed filesystem frequently used in Ubuntu Live CDs to save space. Comparison of Small Linux Environments Environment Type Typical Compressed Size Key Components Ubuntu Base (Docker) Minimal Ubuntu Core [10] Custom BusyBox/Kernel Kernel + BusyBox binaries [7, 4] Alpine Linux musl libc + BusyBox Ubuntu Server Full CLI environment Step-by-Step: Creating a 10MB Test File in Ubuntu ubuntu highly compressed 10mb
Core approaches (practical, ordered)
If you actually need Ubuntu compatibility at such a tiny size, you’d likely build a custom rootfs, stripped down to only essential binaries/libraries. If your "topic" is actually a PDF guide
