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How to Capture Hindi Website Pages with HTMLCSStoImage Without Font Issues

Fix missing or malformed Hindi text in HTMLCSStoImage captures by loading a Devanagari font, applying it in CSS, and waiting for fonts to render.

By the ScreenshotNeo team4 October 202610 min read

To capture a Hindi website with HTMLCSStoImage, make sure the capture loads a font that contains the page’s Devanagari glyphs, apply that font to the Hindi text, and wait until the font and page are ready before taking the screenshot. HTMLCSStoImage supports loading fonts through its google_fonts parameter, a self-hosted font with @font-face, or a font-provider stylesheet. Its documentation does not guarantee that a Devanagari font is installed by default, so explicitly provide one when Hindi text renders as boxes, fallback glyphs, or malformed characters.

This guide shows the URL capture workflow, CSS options, readiness controls, and ways to diagnose problems. The examples use YOUR_API_ID and YOUR_API_KEY placeholders: use the authentication and request format from the HTMLCSStoImage parameter reference for your account.

1. Check the page and choose a font

HTMLCSStoImage can capture a public webpage by URL, or render HTML and optional CSS that you supply. For a live Hindi page, use its fully qualified public URL. Before changing capture settings, check whether the site already loads a font stylesheet and whether that font contains the Devanagari characters used on the page.

If the current font is missing or unreliable in the renderer, choose a font with the needed Devanagari coverage and load it explicitly. The sources here do not prescribe a particular Hindi font, so verify coverage for your own text, including conjuncts, vowel marks, punctuation, and any Latin characters in mixed-language content.

2. Load the font explicitly

There are three documented approaches. Pick the one that best matches how you control the page and its assets.

Option A: Use the Google Fonts parameter

HTMLCSStoImage documents a google_fonts parameter for loading one or more font families. Pass the font family you selected, then use the same family name in injected CSS. The following Python example shows the request structure; replace the placeholder family with a Google Fonts family that includes the Devanagari glyphs your page needs. Confirm the exact authentication fields for your account in the official parameter reference.

import requests

params = {
    "url": "https://example.com/hindi-page",
    "google_fonts": "YOUR_DEVANAGARI_FONT_FAMILY",
    "css": "body, body * { font-family: 'YOUR_DEVANAGARI_FONT_FAMILY', sans-serif !important; }",
}

# Add the authentication fields required by your HTMLCSStoImage account.
response = requests.get(
    "YOUR_HTMLCSSTOIMAGE_CAPTURE_ENDPOINT",
    params=params,
    auth=("YOUR_API_ID", "YOUR_API_KEY"),
    timeout=90,
)
response.raise_for_status()
with open("hindi-page.png", "wb") as image_file:
    image_file.write(response.content)

The endpoint and authentication placeholders above are deliberate: use the endpoint and credentials specified in the official API parameter reference, rather than assuming a URL or auth scheme. The CSS rule applies the chosen family across the page; narrow the selector if only specific sections should change.

Option B: Self-host the font with @font-face

If you control the website or can host a font file at a publicly reachable address, define it with @font-face and apply the family to the Hindi content. The URL must be reachable by the renderer, and the font file must permit the renderer to fetch it.

@font-face {
  font-family: "HindiCapture";
  src: url("https://example.com/fonts/hindi-font.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

body,
.hindi-content {
  font-family: "HindiCapture", sans-serif;
}

For URL captures, supply this CSS through HTMLCSStoImage’s css parameter. If you provide the HTML yourself, include the rule in that HTML’s stylesheet. Check that the font URL returns the font file rather than a login page, redirect loop, or error.

Option C: Load a font-provider stylesheet

You can also include a stylesheet from a font CDN or provider, then set the requested font family in CSS. Google’s guide describes linking a stylesheet, applying its family through CSS, and including a generic fallback such as sans-serif or serif. A fallback can help if a web font fails to load, but it does not guarantee that the fallback includes every Devanagari glyph you need.

<link rel="stylesheet" href="YOUR_FONT_PROVIDER_STYLESHEET_URL">
<style>
  body, .hindi-content {
    font-family: "YOUR_DEVANAGARI_FONT_FAMILY", sans-serif;
  }
</style>

When capturing a URL, the page’s own stylesheets may already contain the link. Otherwise, use the injection method supported by your capture setup and ensure the renderer can reach the stylesheet and font files.

3. Capture the page and wait for rendering

Once the font is configured, allow time for stylesheets, font files, scripts, and page content to load. HTMLCSStoImage documents ms_delay for adding a delay and render_when_ready for waiting on a ScreenshotReady() signal. Its parameter reference also lists max_wait_ms.

Use a delay when you cannot signal readiness

Start with the FAQ’s suggested 500 ms delay and adjust based on the page and capture result. A fixed delay is simple, but it may be too short on a slow resource load or unnecessarily long on a fast page.

params = {
    "url": "https://example.com/hindi-page",
    "google_fonts": "YOUR_DEVANAGARI_FONT_FAMILY",
    "css": "body { font-family: 'YOUR_DEVANAGARI_FONT_FAMILY', sans-serif !important; }",
    "ms_delay": 500,
}

Signal readiness when you control the page

If you can modify the page, use the documented readiness mode and call ScreenshotReady() after the page’s required rendering work is complete. For Hindi text, signal only after the stylesheet and font have loaded and the relevant content has been laid out. Set an appropriate max_wait_ms so the capture does not wait without bound.

// Page-side example: call this only after your required content and font are ready.
if (document.fonts && document.fonts.ready) {
  document.fonts.ready.then(() => {
    if (typeof ScreenshotReady === "function") {
      ScreenshotReady();
    }
  });
} else if (typeof ScreenshotReady === "function") {
  ScreenshotReady();
}
params = {
    "url": "https://example.com/hindi-page",
    "render_when_ready": True,
    "max_wait_ms": 10000,
}

Use the parameter reference for accepted values and request details. A readiness signal is useful only if it runs after the content you care about is ready; signaling too early can still produce a screenshot with fallback glyphs or incomplete layout.

4. Choose the capture area and inspect the result

Use full_screen when you need the entire scrollable page. Leave it off for a viewport capture, or use the documented crop controls when you need a particular region. The full-screen option does not fix font loading; it only changes the capture area.

Inspect the actual image at normal zoom. Check representative Hindi words, conjuncts, vowel marks, punctuation, and mixed Devanagari and Latin text. Also inspect text near page edges and line breaks, because a different font can change wrapping and page height.

5. Complete request examples

These examples show how to encode a URL and common capture parameters in cURL, Python, and Node.js. Add the authentication and endpoint values required by your HTMLCSStoImage account. Parameter availability and exact accepted formats are documented in the API reference.

cURL

curl -G "YOUR_HTMLCSSTOIMAGE_CAPTURE_ENDPOINT" \
  -u "YOUR_API_ID:YOUR_API_KEY" \
  --data-urlencode "url=https://example.com/hindi-page" \
  --data-urlencode "google_fonts=YOUR_DEVANAGARI_FONT_FAMILY" \
  --data-urlencode "css=body, body * { font-family: 'YOUR_DEVANAGARI_FONT_FAMILY', sans-serif !important; }" \
  --data-urlencode "ms_delay=500" \
  -o hindi-page.png

Python

import requests

endpoint = "YOUR_HTMLCSSTOIMAGE_CAPTURE_ENDPOINT"
params = {
    "url": "https://example.com/hindi-page",
    "google_fonts": "YOUR_DEVANAGARI_FONT_FAMILY",
    "css": "body, body * { font-family: 'YOUR_DEVANAGARI_FONT_FAMILY', sans-serif !important; }",
    "ms_delay": 500,
}
response = requests.get(
    endpoint,
    params=params,
    auth=("YOUR_API_ID", "YOUR_API_KEY"),
    timeout=90,
)
response.raise_for_status()
with open("hindi-page.png", "wb") as image_file:
    image_file.write(response.content)

Node.js

const endpoint = "YOUR_HTMLCSSTOIMAGE_CAPTURE_ENDPOINT";
const params = new URLSearchParams({
  url: "https://example.com/hindi-page",
  google_fonts: "YOUR_DEVANAGARI_FONT_FAMILY",
  css: "body, body * { font-family: 'YOUR_DEVANAGARI_FONT_FAMILY', sans-serif !important; }",
  ms_delay: "500",
});

const credentials = Buffer.from("YOUR_API_ID:YOUR_API_KEY").toString("base64");
const response = await fetch(`${endpoint}?${params}`, {
  headers: { Authorization: `Basic ${credentials}` },
  signal: AbortSignal.timeout(90000),
});
if (!response.ok) {
  throw new Error(`Capture failed: ${response.status} ${response.statusText}`);
}
const image = Buffer.from(await response.arrayBuffer());
await import("node:fs/promises").then(({ writeFile }) =>
  writeFile("hindi-page.png", image)
);

These snippets illustrate a common Basic authentication shape; confirm your account’s required authentication and endpoint in the official documentation before using them. If your account uses a different request pattern, preserve the capture parameters and adapt only the documented transport and credentials.

6. Troubleshoot common font problems

Symptom Likely cause What to change
Hindi characters appear as empty boxes The active font lacks the required Devanagari glyphs, or the intended font did not load. Choose a font with the needed glyph coverage, load it explicitly through google_fonts, @font-face, or a provider stylesheet, and apply its family to the text.
Some marks or conjuncts look wrong The font may not cover the exact characters or shaping sequence, or the capture occurred before font loading completed. Check the affected text with the selected font and wait for font readiness; inspect the resulting image rather than assuming the fallback covers it.
The page uses the intended font in a normal browser but not in the capture The renderer may not be able to fetch the stylesheet or font resource, or the capture may begin before loading finishes. Make the stylesheet and font resource reachable to the renderer, explicitly apply the font, and use a readiness signal or tune ms_delay.
Only some page regions use the font The site may apply a more specific CSS rule to those regions, or your injected selector may not match all text. Inspect the page’s selectors and apply the family to the relevant Hindi text. Use a more specific selector where needed; reserve !important for cases where existing rules override the capture CSS.
The screenshot has the old layout or missing text The capture happened before scripts or content finished rendering. Use render_when_ready with a correctly timed ScreenshotReady() call, or increase ms_delay and set an appropriate max_wait_ms.
Capture request fails before producing an image The endpoint, authentication, or request parameters may not match the account’s API requirements. Verify the endpoint, credentials, parameter names, and accepted values in the official parameter reference. Check the HTTP response before treating its body as an image.

The HTMLCSStoImage FAQ says its renderer has Noto CJK installed for Chinese, Japanese, and Korean. That statement does not establish whether Devanagari is installed or supported by default. If an explicitly loaded font still fails, the FAQ advises contacting HTMLCSStoImage support about a language or character set that does not render correctly.

7. Performance, reliability, and cost considerations

  • Font loading adds dependencies. A Google Fonts parameter, provider stylesheet, or self-hosted font must be available to the renderer. A missing or slow resource can leave fallback text in the image.
  • Choose waits deliberately. A longer fixed delay can make captures slower. A readiness signal can avoid guessing when you control the page, but it must fire after the required font and content are ready. Use max_wait_ms as a ceiling where appropriate.
  • Full-page captures can take longer. They capture more content than a viewport screenshot, and page content may load as the page scrolls. Check the resulting image for text and layout throughout the captured page.
  • Validate after font changes. A font can change line breaks and page height even when all glyphs render. Review the output when changing font family, CSS, or capture timing.
  • Confirm plan costs with the provider. The research sources used for this guide establish the capture options, not current HTMLCSStoImage pricing or billing behavior. Check the provider’s current plan details before estimating production costs.

Or skip the browser setup

ScreenshotNeo is a website screenshot API and MCP server. Its one-call URL capture can return an image without you managing browser setup for the capture:

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

See the ScreenshotNeo API documentation for request options. ScreenshotNeo removes cookie banners, popups, and chat widgets before the shot; bot checks, blank pages, and failed loads are never billed; and its MCP server lets AI agents take screenshots. The free plan includes 1,000 screenshots a month with no card, and paid plans start at $5 for 3,000. Its API supports custom CSS and JavaScript, so you can specify a font when the page needs one.

cURL:

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

Python:

import requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://example.com/hindi-page"}, timeout=90)
open("shot.webp", "wb").write(r.content)

Node.js:

const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://example.com/hindi-page' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);

Sign up for 1,000 free screenshots a month, with no card required.

Frequently asked questions

Does HTMLCSStoImage guarantee Hindi or Devanagari support by default?

The cited documentation does not make a Hindi-specific default-font guarantee. It describes Noto CJK for Chinese, Japanese, and Korean; that is not evidence about Devanagari.

Which Hindi font should I use?

Use a font whose coverage includes the characters on your page. The sources for this guide do not prescribe a specific Devanagari font. Check the font against your actual text and inspect the captured image.

Can I capture a page without changing its source?

For a public URL, HTMLCSStoImage documents a css parameter for injected styling and a google_fonts parameter for font loading. Use those to configure the capture without editing the site itself.

What if the font still fails after I load it explicitly?

Check that the renderer can reach the font resource, that the CSS family name matches, and that capture waits for the resource. If the issue remains, contact HTMLCSStoImage support with the affected language or character set, as its FAQ suggests.

Sources

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