如何在 Puppeteer 中设置截图尺寸？
问题：
你正在尝试使用 Puppeteer 截图，如下所示：
example.js
await page.screenshot({path: 'screenshot.png'});但截图始终是 800x600 像素。如何增大截图尺寸？
解决方案
你不能设置截图的尺寸，你需要在 puppeteer.launch 中设置视口尺寸：
example.js
const browser = await puppeteer.launch({
defaultViewport: {width: 1920, height: 1080}
});生成 1920x1080 截图的完整示例：
screenshot_full_example.js
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({
defaultViewport: {width: 1920, height: 1080}
});
const page = await browser.newPage();
await page.goto('https://techoverflow.net', {waitUntil: 'domcontentloaded'});
// 等待页面完全加载
// 截图
await page.screenshot({path: 'screenshot.png'});
await browser.close();
})();Check out similar posts by category:
Javascript, Puppeteer
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