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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11If 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 installed on your desktop may not exist in the Linux container used in CI or production. Also check whether the page’s web fonts finished loading before capture: font readiness can fix a timing problem, but it cannot add missing Devanagari glyphs.
First determine whether the problem is font loading or font coverage
These symptoms can have different causes. A web font that has not loaded yet may leave Chrome temporarily using a fallback. A font that is unavailable—or lacks the needed Devanagari characters—cannot render those glyphs, no matter how long the script waits.
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- Likely loading or timing issue: the expected font appears after the page has been open longer, or the screenshot is taken before the application finishes rendering.
- Likely availability or coverage issue: Hindi still appears as boxes or an unexpected fallback after the page and fonts are ready, particularly in a container or CI environment.
- Possibly CSS-related: the declared family, weight, or style does not resolve to the face you expect, or the font stack falls back differently in the capture environment.
A browser can render only the glyphs in fonts available to it. Puppeteer’s Linux troubleshooting guidance recommends charset-supporting fonts in Docker examples, but those examples are not Hindi-specific and do not identify a universally correct Devanagari package. Check your target distribution’s available packages and verify the actual font’s coverage. Puppeteer troubleshooting
Reproduce the issue in the same environment as the screenshot
Record the operating system or container image, Puppeteer version, and browser version used for the failing capture. A desktop-only fix is not enough if the screenshot worker runs in a different image. Puppeteer says it works best with its downloaded Chrome for Testing browser; compatibility with other Chrome versions is not guaranteed. Puppeteer supported browsers
For a reliable comparison, hold the container image, font installation, Puppeteer version, and browser version constant. If production uses a system-installed browser while local development uses Puppeteer’s paired browser, test both rather than assuming they behave identically.
Wait for page rendering and web fonts before taking the screenshot
Wait for navigation or an application-specific ready signal, then await the document’s font readiness before capturing. For example:
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 });This is an illustrative pattern; adapt it to your page and Puppeteer version. networkidle0 may never be appropriate for applications with persistent network requests. Prefer a known application-ready signal when available, then wait for fonts.
Puppeteer’s PDF options document waitForFonts as waiting for document.fonts.ready. That is a PDF option; do not assume page.screenshot() has the same option. For screenshots, explicitly wait in the page as shown above. Puppeteer PDFOptions documentation
Make Devanagari-capable fonts available to Chrome
There are two common delivery paths. Either way, the font must contain the characters your page uses, and the CSS family, weight, and style must resolve as intended.
| Approach | What to do | Trade-offs to consider |
|---|---|---|
| Install a font in the host or container | Add a Devanagari-capable font package or font file to the image that runs Chrome, rebuild the image, and recapture. | Useful when you control the screenshot runtime and want a fixed environment. Package names and availability vary by distribution, so verify them for your base image. |
| Serve a web font through the page’s CSS | Load a font with the required Devanagari coverage and use its correct family name, weight, and style in the page. | Can make the font travel with the page, but capture depends on successful font delivery and loading before the screenshot. |
The sources cited here do not establish a single preferred Hindi font or compare named Hindi fonts. Confirm coverage and behavior with the particular font and distribution you deploy.
Use a minimal Hindi fixture to isolate the cause
Create a small static page containing representative Hindi words, punctuation, and any characters that fail on the real page. Capture it with the same container and browser used for the application. If the fixture fails too, investigate font availability, coverage, and CSS resolution. If it renders correctly while the real page does not, focus on that page’s stylesheet, requested font weights, network-loaded fonts, and application timing. Inspect the resulting image; this is a diagnostic procedure, not a guarantee that every font or page behaves the same.
Troubleshoot common failures
| Symptom | Likely cause | What to check or change |
|---|---|---|
| Hindi appears as empty boxes or missing characters | No available font supplies the required glyphs, or the selected face lacks coverage. | Install or serve a font that covers the page’s Devanagari characters in the screenshot runtime. Verify its coverage rather than relying on the family name alone. |
| The screenshot uses an unexpected typeface | The requested family, weight, or style is unavailable or does not resolve as expected. | Check the page’s CSS font stack and requested face details, then confirm the relevant font is available to Chrome. |
| The page is correct after waiting but the screenshot is not | Capture occurs before application rendering or web-font loading finishes. | Wait for the app’s ready signal and then for document.fonts.ready before calling page.screenshot(). |
| It works locally but fails in CI or production | The browser, operating system, container image, or installed fonts differ. | Reproduce in the deployment image, record its browser and Puppeteer versions, and keep those inputs consistent. Use Puppeteer’s paired Chrome for Testing where practical. |
networkidle0 never completes |
The application may keep network connections active. | Use an application-specific readiness condition rather than treating network idleness as a universal signal. |
Or skip the browser setup
ScreenshotNeo can take a screenshot from one GET request. It accepts cookie or consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each cleanup step can be turned off. Bot checks or CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and the response identifies the page verdict and billing status in headers. It also provides an MCP server for AI agents, including Claude, Cursor, and other MCP clients.
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That convenience does not install fonts in your own Puppeteer container or guarantee that a target page has correct Hindi typography. For a page rendered by ScreenshotNeo, use a page that serves the right font and allow it to load before capture. The API supports image and PDF output, and its other capture options are documented at ScreenshotNeo’s documentation.
Example cURL request, adapting the target URL as needed:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpThere are 1,000 screenshots per month on the free plan with no card required; paid plans start at $5 for 3,000 screenshots. Learn about ScreenshotNeo, then sign up for 1,000 free screenshots a month, with no card.
Frequently Asked Questions
Does document.fonts.ready install a missing Hindi font?
No. It waits for font loading to settle; the screenshot runtime still needs a font that contains the required Devanagari glyphs.
Does Puppeteer’s waitForFonts option apply to screenshots?
The documented option belongs to PDF generation. For screenshots, explicitly await document.fonts.ready in the page.
Quick Recap
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