Remove Borders (1px) on Image with NodeJS

ImageCropBorder.js

var fs = require('fs')
    , gm = require('gm').subClass({imageMagick: true});



const imagesFolder = 'public/images/1/featured';

function getFilePaths() {
    return new Promise(resolve => {
        fs.readdir(imagesFolder, (err, files) => {
            resolve(files);
        });
    });
}


async function run() {

    const files = await getFilePaths();

    for (const file of files) {
        const contents = await imageEdit(imagesFolder + '/' + file);
        console.log(contents);
    }
}


function imageEdit(file)
{
    return new Promise(resolve => {

        gm(file)
            .size(function (err, size) {
                if (!err) {
                    gm(file)
                        .resize(size.width + 4, size.height + 4, '^')
                        .gravity('Center')
                        .crop(size.width + 2, size.height + 2)
                        .noProfile()
                        .write(file, function (err) {
                            if (!err){
                                resolve(file)
                            }
                        });
                }
            });
    });
}


run();