关于javascript:js-pdf预览

url 预览

function previewPdf(url, filename) {    window.open(url, filename, `width=1060,height=${screen.height},left=${(screen.width - 1060)>>1}`)}

文件流 预览

function objectURL2Blob(url) {    return new Promise(resolve => {        let xhr = new XMLHttpRequest()        xhr.open('GET', url, true)        xhr.responseType = 'blob'        xhr.onload = function() {            if (this.status == 200) resolve(this.response)        }        xhr.send()    })}let file = null // 文件let url = URL.createObjectURL(file)let blob = new Blob([await objectURL2Blob(url)], { type: 'application/pdf' })url = URL.createObjectURL(blob)previewPdf(url, 'JavaScript权威指南.pdf')

局部浏览器可能不反对