Abstract Screenshot API Screenshot Is Cut Off: How to Fix Full-Page Capture

A screenshot that ends before the bottom of a page usually calls for two checks: confirm that the request asks for a full-page capture, then check whether the page has finished rendering before capture. A viewport screenshot shows only the configured visible browser area; full-page capture is a separate capture scope.

Abstract’s older Python SDK reference documents a capture_full_page argument and says its default is true for SDK version 1.0.0. That does not establish the current REST API’s parameter name or default. Check Abstract’s current documentation for the exact REST syntax and inspect the request your application actually sends before copying a parameter from an SDK example. Abstract Python SDK reference

1. Confirm what the screenshot captured

Compare the returned image’s dimensions and visible content with the page:

If the image ends at roughly the configured viewport height, check whether the request selected viewport capture rather than full-page capture.
If it includes more than the viewport but stops at a particular section, the scope may be correct while page rendering or page-specific behavior needs investigation.
Record the requested viewport dimensions, target URL, response status, and the point where the image ends. Those details make the next checks more useful.

Abstract says its screenshot API supports control over dimensions, image format, capture timing, and CSS injection. These settings can affect what is visible in the result, but the product page does not establish that any one of them caused a specific truncation. Abstract Website Screenshot API

2. Inspect the outgoing request

Log or inspect the final request produced by your application, including its query parameters or JSON body.
Verify the target URL and the exact current full-page option name and accepted value against Abstract’s current REST documentation.
Check that the option is actually sent. A setting in your own configuration does not prove it reached the API.
Keep the API key private when sharing a request for debugging.

The following cURL command shows the request shape, but deliberately leaves the full-page parameter out: the retrieved Abstract sources do not confirm its current REST spelling or default. Add the documented parameter and value from Abstract’s current REST reference before using it to test full-page capture.

curl -G 'https://screenshot.abstractapi.com/v1/' \
  --data-urlencode 'api_key=YOUR_API_KEY' \
  --data-urlencode 'url=https://example.com' \
  --output screenshot.png

Confirm the current endpoint, authentication format, and full-page parameter in Abstract’s documentation before running this request; the product page is not a substitute for the current REST reference. Do not infer a REST key such as full_page or fullPage from the SDK’s capture_full_page argument.

3. Allow the page to finish rendering

If the request is configured correctly, investigate timing. Abstract documents capture delays and custom timing controls. A page may not have finished rendering when a screenshot starts, particularly when visible content depends on scripts or later page activity. The retrieved sources do not establish a universal delay value, so choose a delay based on the target page and compare results rather than applying a fixed duration to every URL.

Use a controlled comparison:

Capture a simple, stable page with the same request settings.
Capture the affected page with the same settings.
If timing is configurable, try a longer delay and compare the result.
Check whether the missing content appears only after scrolling, clicking, or another interaction. Do not assume a delay alone will trigger an interaction-dependent change.

This comparison can help show whether the issue follows the request or the page, but it does not by itself identify the root cause.

4. Check dimensions and page behavior

Abstract lists viewport and dimension controls, image formats, and CSS injection among its API capabilities. Confirm that the requested dimensions are intentional and that your application is examining the expected returned image. If you use CSS injection, review whether it changes layout or visibility. These checks help narrow the investigation; the available sources do not document a particular maximum page height or prove that such a limit explains a given cut-off screenshot.

Also compare the affected page with a simple static page using the same capture scope and timing. If only one page is affected, provide its behavior and a minimal reproduction to Abstract support rather than guessing at an API defect or a site-side limit.

5. Runnable client examples

The examples below demonstrate the request structure using the endpoint and authentication format shown in Abstract’s product page. They do not enable full-page capture: add the exact REST option and value only after checking Abstract’s current documentation. This distinction matters because the older SDK’s argument name and default are not confirmation of the REST contract.

cURL

curl -G 'https://screenshot.abstractapi.com/v1/' \
  --data-urlencode 'api_key=YOUR_API_KEY' \
  --data-urlencode 'url=https://example.com' \
  --output screenshot.png

Python

import requests

response = requests.get(
    "https://screenshot.abstractapi.com/v1/",
    params={
        "api_key": "YOUR_API_KEY",
        "url": "https://example.com",
        # Add Abstract's currently documented REST full-page option here.
    },
    timeout=90,
)
response.raise_for_status()
with open("screenshot.png", "wb") as image:
    image.write(response.content)

Node.js

const query = new URLSearchParams({
  api_key: 'YOUR_API_KEY',
  url: 'https://example.com',
  // Add Abstract's currently documented REST full-page option here.
});

const response = await fetch(
  `https://screenshot.abstractapi.com/v1/?${query}`
);
if (!response.ok) {
  throw new Error(`Screenshot request failed: ${response.status}`);
}
const image = Buffer.from(await response.arrayBuffer());
await import('node:fs/promises').then(fs =>
  fs.writeFile('screenshot.png', image)
);

The SDK-specific reference lists capture_full_page, width, height, delay, css_injection, user_agent, and export_format as arguments, and documents capture_full_page as true by default for that SDK version. Treat those names and defaults as SDK-specific. See the SDK argument reference.

6. Troubleshooting common symptoms

Symptom	Likely check	Next step
Image is exactly viewport-sized	Full-page capture may not be enabled, or the option may not be reaching the API.	Inspect the outgoing request and verify the current REST parameter name, accepted value, and default in Abstract’s documentation.
Top of page appears, lower content is absent	The capture may start before the page is ready, or the content may depend on later page activity.	Try the documented timing control and compare with a stable page. Check whether the missing content requires interaction.
Only one URL is affected	The issue may be specific to that page’s behavior or rendering.	Reproduce with the same settings on a simple page; send the target behavior and minimal reproduction to Abstract support if it persists.
Changing an app setting has no effect	The final request may omit the setting, use an unaccepted value, or use an option name from a different interface.	Inspect the actual query string or request body and compare it with the current REST documentation.
Image dimensions do not match expectations	Requested viewport dimensions or the format being inspected may differ from what you expect.	Record the configured dimensions and output format, then compare those with the returned image.

7. Performance, reliability, and cost

Capture timing is a tradeoff: waiting longer may give a page more time to render, while increasing the time each request takes. The sources provide no tested delay recommendation, success-rate benchmark, or current price comparison for this specific issue. Tune timing against representative pages and avoid treating one successful capture as proof that every target behaves the same way.

For reliable debugging, preserve the request parameters, response status or error, target URL, configured dimensions, and a copy of the resulting image. Remove API keys before sharing logs. If a minimal reproduction still fails with the documented option, contact Abstract with those details.

8. Or skip the browser setup

ScreenshotNeo is a website screenshot API and MCP server for developers. A single GET request returns a PNG, JPEG, WebP, or PDF. Its full-page capture can load lazy images. See the ScreenshotNeo API documentation for the available options and request details.

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

ScreenshotNeo removes cookie banners, newsletter popups, and chat widgets before capture; each cleanup step can be turned off. Bot checks, blank pages, failed loads, timeouts, and cache hits are not billed, and responses include X-Page-Verdict and X-Billed headers. Its MCP server gives AI agents tools for screenshots, page information, and PDF capture. The Free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000 screenshots.

FAQ

Does Abstract’s Python SDK prove that the REST API uses `capture_full_page`?

No. The cited reference documents that argument for Python SDK version 1.0.0. Verify the current REST parameter separately.

Should I always add a long delay?

No universal delay is established by the available sources. Compare captures with the target page and tune the documented timing control to its behavior.

Can the title alone identify why my screenshot is truncated?

No. You need the request that was sent, the returned image dimensions and content, and a reproducible target page to narrow down the cause.