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Freedom251 › Blog › Chromium

Puppeteer se Chromium mein full-page screenshot kaise lein

By Freedom251 Team · · 4 min read

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Puppeteer mein poore web page ka screenshot lene ke liye page.screenshot({ fullPage: true }) call karein. Screenshot ko file mein save karne ke liye path bhi dein. Neeche runnable Node.js example, page readiness ke tips aur common problems ke fixes hain.

Full-page screenshot lene ka seedha tareeqa

Puppeteer ka basic flow hai: browser launch karein, page kholein, URL par navigate karein, phir screenshot lein. fullPage ka default false hai, isliye poore document ke liye ise khud true set karna hota hai.

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import puppeteer from 'puppeteer';

const browser = await puppeteer.launch();
try {
  const page = await browser.newPage();
  await page.goto('https://example.com', { waitUntil: 'networkidle2' });
  await page.screenshot({ path: 'full-page.png', fullPage: true });
} finally {
  await browser.close();
}

Is example ko ES module ke roop mein chalayein aur project mein puppeteer package install rakhein. full-page.png current working directory ke hisaab se likhi jayegi. Apna target URL aur zaroorat ke mutabik output path badal dein.

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Screenshot se pehle page ko taiyar hone dein

page.goto() ka waitUntil: 'networkidle2' option ek upyogi starting point hai, lekin har site par screenshot-ready content ki guarantee nahi deta. Lazy-loaded images, scroll par aane wale sections, ya baad mein chalne wale client-side updates is condition ke baad bhi render ho sakte hain.

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  • Agar page kisi khaas element ke render hone ke baad hi taiyar hota hai, screenshot se pehle us element ya app-specific ready state ka intezar karein.
  • Scroll karne par content load hota ho to capture se pehle page ko zaroorat ke mutabik scroll karein aur apne target content ke load hone ka intezar karein.
  • Fixed delay sirf tab use karein jab page ke behavior ke hisaab se woh munasib ho; har site ke liye ek hi delay bharosemand nahi hota.

Poore page, region ya element mein se kya capture karein?

Zaroorat Istemaal Dhyan dene wali baat
Poora document page.screenshot({ fullPage: true }) fullPage ka default false hai.
Page ka ek nirdharit rectangle clip option Yeh rectangle ko specify karta hai. captureBeyondViewport ka documented default clip na hone par false aur clip hone par true hai.
Ek DOM element Us element par ElementHandle.screenshot() Puppeteer zaroorat padne par element ko viewport mein lane ke liye scroll karta hai. DOM se detach ho chuka element error deta hai.

Full-page capture aur clip alag kaam ke liye hain: pehla poora page leta hai, jabki doosra chuna hua rectangle. Ek saath settings badalne se pehle tay karein ki output mein poora document chahiye ya sirf ek hissa.

Output format aur screenshot options

  • File save karna: path: 'full-page.png' dein. path na dene par Puppeteer file ko disk par save nahi karta.
  • Image data paana: page.screenshot() default roop se Uint8Array deta hai. encoding: 'base64' dene par return value string hoti hai.
  • Format: PNG default image format hai. Doosre supported image formats ke liye screenshot options mein format chun sakte hain.
  • Quality: quality sirf non-PNG formats par lagu hoti hai; PNG ke liye quality setting ka asar nahi hota.
  • Transparent background: omitBackground: true default background ko chhupa sakta hai. Is option ka default false hai.

Common problems aur unke fixes

Screenshot sirf viewport jitna aa raha hai

Screenshot options mein fullPage: true jodein. Iska default false hone ki wajah se option chhoda ho to capture poore page ka nahi hota.

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Page ka kuch content khaali ya missing hai

networkidle2 ko universal readiness signal na samjhein. Dekhein ki missing section scroll par load hota hai ya app baad mein update karti hai; screenshot se pehle us content ke liye relevant selector, app state, ya load condition ka intezar karein.

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Screenshot file nahi mil rahi

Confirm karein ki screenshot call mein path diya hai. Relative path current working directory ke mutabik resolve hota hai, jo script ke folder se alag ho sakta hai.

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Element screenshot par error aa raha hai

Agar ElementHandle.screenshot() use kar rahe hain, capture se pehle element ko dobara locate karein. DOM se detach hua handle error deta hai.

Bahut bade page par capture mushkil ho raha hai

Puppeteer ke reviewed API references bahut lambe pages ke liye ek universal maximum screenshot dimension ya memory limit establish nahi karte. Isliye koi fixed limit assume na karein; bade document par apne target Chromium aur Puppeteer setup mein capture ko verify karein.

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Or skip the browser setup

Agar apna Chromium/Puppeteer environment chalane ke bajay API se screenshot chahiye, ScreenshotNeo ko ek GET request se call kiya ja sakta hai. API docs dekhein; yeh cURL example screenshot ko file mein save karta hai:

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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webp

ScreenshotNeo capture se pehle cookie/consent banners accept karta hai aur 60 se zyada known consent platforms, newsletter popups aur chat widgets hata sakta hai; har step ko band kiya ja sakta hai. Bot checks/CAPTCHAs, blank pages, timeouts, failed loads aur cache hits ke liye charge nahi hota, aur response X-Page-Verdict aur X-Billed headers mein batata hai ki kya hua. AI agents ke liye MCP server mein take_screenshot, get_page_info aur capture_pdf tools hain. Free plan mein bina card ke 1,000 screenshots mahine ke milte hain; paid plans $5 mein 3,000 se shuru hote hain. Free account banayein aur 1,000 screenshots per month bina card ke shuru karein.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

ChromiumNode.jsPuppeteerscreenshotsWeb development

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