> For the complete documentation index, see [llms.txt](https://niina-toru.gitbook.io/pnm/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://niina-toru.gitbook.io/pnm/master.md).

# Introduction

pnm is a header-only, standalone Netpbm image reader/writer for modern C++ (C++11 or later).

It has no dependencies except for C++ Standard Library.

the interfaces are inspired by png++.

## What is Netpbm image format?

<https://en.wikipedia.org/wiki/Netpbm_format>