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If Hindi text is missing, displayed as boxes, or rendered in an unexpected typeface in a Puppeteer screenshot, check the fonts available to the Chrome process that takes the screenshot. A font on your desktop is not necessarily installed in the Linux container used by CI or production. Also check whether a web font has finished loading before capture: waiting can fix a timing problem, but it cannot supply missing Devanagari glyphs.
Why Hindi text fails in Puppeteer screenshots
Chrome can render a character only when an available font contains its glyph. The CSS font-family declaration is a request, not proof that the named face exists in the screenshot runtime or supports the page’s Devanagari characters. If the requested face lacks coverage, Chrome may use a fallback; if no suitable face is available, the result can be missing glyphs or boxes.
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A second, distinct problem is timing. A page may rely on a network-loaded web font that has not finished loading when the screenshot starts. Fixing timing and fixing glyph coverage require separate checks.
Use this diagnostic sequence
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Reproduce the capture in its real runtime
Record the operating system or container image, Puppeteer version, and browser version used by CI or production. Reproduce there rather than relying on a local desktop result. Puppeteer says it works best with its downloaded Chrome for Testing browser and does not guarantee compatibility with arbitrary Chrome versions; see the Puppeteer supported browsers documentation.
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Wait for the page and its fonts
Wait for navigation and any application-specific rendering signal, then await the page’s font readiness before taking a screenshot:
await page.goto(url, { waitUntil: 'networkidle0' }); // Wait for app-specific rendering here if needed. await page.evaluate(() => document.fonts.ready); await page.screenshot({ path: 'hindi-page.png', fullPage: true });networkidle0is not suitable for every site, particularly one with persistent requests. Use a reliable application-ready signal when available. The expression waits for the browser’s font loading set to settle; it does not guarantee that a settled font contains Devanagari glyphs.Puppeteer’s PDFOptions reference documents
waitForFontsfor PDF generation and describes it as waiting fordocument.fonts.ready. That is a PDF option; do not assumepage.screenshot()has the same option. For screenshots, explicitly await font readiness in the page as shown above.Windows Errors? Fix Them Before They Spread
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Check the CSS family, weight, style, and fallback order
Inspect the rules applied to the Hindi text, including the requested family and weight. Confirm that the intended face is actually loaded and that it covers the characters used on the page. A family name in CSS alone does not establish either fact. Check fallback families too, since the browser may be resolving to a different face than expected.
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Check font availability in the image that runs Chrome
If the runtime has no suitable face, install an appropriate Devanagari-capable font package or bundle a font file into the screenshot worker or container. Rebuild the image and repeat the capture inside that image. Puppeteer’s Linux troubleshooting guidance discusses system dependencies and charset-supporting fonts in container examples, but its examples are not a Hindi-specific recommendation. Verify package names and actual glyph coverage for your chosen base image instead of copying an old package list.
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Compare a minimal fixture with the real page
Capture a small static HTML fixture containing representative Hindi text and punctuation from the affected page. If the fixture also fails in the deployment runtime, investigate installed fonts and browser setup. If it succeeds but the real page fails, focus on its CSS, requested weight, application rendering, or web-font loading. Inspect the resulting images visually; this is a diagnostic approach, not a guarantee that any particular font package will solve the issue.
Choose how to deliver the font
| Approach | Advantages | Trade-offs and checks |
|---|---|---|
| Install or bundle a font in the host/container | Keeps the font available to the browser in that runtime and can support repeatable or offline captures when the image and font are fixed. | You must maintain the font in the image, verify package availability for the target distribution, and confirm that the face covers the actual Devanagari characters. |
| Serve a web font through the page’s CSS | Lets the page request its intended face through its own stylesheet. | The capture depends on the font request completing and resolving as intended. Wait for font readiness, check network or application timing, and confirm coverage and CSS weight/style. |
Neither route is inherently correct for every deployment. The useful test is whether the chosen face is available at capture time, covers the text, and resolves through the CSS rules used by the page. The cited Puppeteer guidance does not establish one universally preferred Hindi font or package.
Keep screenshot results reproducible
- Pin or otherwise record the container or operating-system image, Puppeteer version, browser version, and font packages used for captures.
- Prefer Puppeteer’s paired Chrome for Testing browser where practical; arbitrary browser versions are not guaranteed compatible.
- Use the same runtime for local diagnosis and CI or production verification. A screenshot that works on a developer’s machine does not prove that the deployment image has the same fonts.
- Keep a small Hindi fixture with the characters and punctuation that matter to your page, and inspect its screenshot after changes to the image, browser, CSS, or font delivery.
Troubleshooting by symptom
| Symptom | Likely cause | What to check or change |
|---|---|---|
| Hindi appears as boxes or missing characters | No available font has glyph coverage for the affected text. | Check fonts in the capture container, install or bundle a suitable Devanagari-capable face, rebuild the image, and test the actual characters. |
| Text appears in an unexpected typeface | The declared family is unavailable, the requested weight/style does not resolve as expected, or fallback is being used. | Check CSS family, weight, style, loaded face, and fallback order in the screenshot runtime. |
| Text is wrong only intermittently or on the first capture | A web font or application-rendered content may not be ready when capture begins. | Wait for the application’s ready condition and document.fonts.ready; use an app-specific signal if the page does not become network-idle. |
| It works locally but fails in CI or production | The browser, operating-system image, or installed fonts differ. | Reproduce with the deployment image and browser version, then align the font and browser setup rather than changing unrelated page code. |
| Waiting for fonts does not fix the output | The browser may have finished loading fonts, but none available to it contains the required glyphs. | Check font coverage and runtime installation; readiness is not a substitute for a suitable font. |
Or skip the browser setup
If you need a screenshot without maintaining a Puppeteer environment, ScreenshotNeo provides a website screenshot API and MCP server. Its API accepts a URL in one GET request; the example below saves a WebP response. See the ScreenshotNeo API documentation for request options.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo removes cookie and consent banners, newsletter popups, and chat widgets before capture. Bot checks, blank pages, failed loads, timeouts, and cache hits are not billed; response headers identify the page verdict and billing status. Its MCP server offers screenshot, page-information, and PDF tools for AI agents. The free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000 screenshots.
Sign up for ScreenshotNeo’s free plan.
Frequently Asked Questions
Does Puppeteer’s PDF waitForFonts option apply to screenshots?
No. It is documented as a PDF option. For a screenshot, evaluate document.fonts.ready in the page before calling page.screenshot().
Will waiting for document.fonts.ready fix missing Devanagari glyphs?
No. It addresses font loading readiness, not font coverage. The capture runtime still needs an available font containing the required glyphs.
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There is no universally established package in the cited Puppeteer guidance. Check the target distribution’s package availability and verify that the chosen font covers the page’s Devanagari text.
Quick Recap
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