How to modify output files?

Hello, my `webpack.config.js` has the following definitions:

```js
entry: {
  filename: './dist/commonjs/proteus.js'
},
output: {
  filename: 'proteus.js',
  library: 'proteus',
  libraryTarget: 'amd',
  path: './dist/amd'
}
```

Does the "string-replace-webpack-plugin" only edit the entry files or can it also replace strings in the `output` of my webpacked module?