Unfortunately, the provided search results do not contain any information about the USA Football logo or its PNG format. However, I can suggest using the fast-png library to encode and decode PNG images.

Here is a brief snippet:

const fastPng = require('fast-png');

// Encode PNG image
const buffer = Buffer.from('your-image-data', 'binary');
const pngBuffer = await fastPng.encode(buffer, 100);

// Decode PNG image
const decodedBuffer = await fastPng.decode(pngBuffer);
console.log(decodedBuffer.toString('binary'));

Note that this is just an example and you should replace 'your-image-data' with the actual data of your image.