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How to Capture Full-Page Screenshots of a fullPage.js Site

By Freedom251 Team · · 5 min read

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fullPage.js builds fullscreen, section-based scrolling websites; it does not take screenshots. To capture one, use a browser’s full-page screenshot feature or a scrolling-and-stitching extension, then check the result carefully: section snapping, horizontal slides and nested scroll areas can leave content out of an image that looks like one ordinary tall page.

What fullPage.js changes about a full-page capture

The fullPage.js documentation describes it as a library for fullscreen scrolling sites, with sections and optional landscape sliders. The documentation displayed version 4.0.41 when checked on October 3, 2026; that is a version identifier, not a guarantee that every site uses that release. See the fullPage.js documentation.

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Unlike a conventional long document, a fullPage.js page may fit sections to the viewport and move between them through automatic scrolling. A section may also contain horizontal slides or content that scrolls inside the section. A capture tool that simply measures document height may not represent every screen or state a visitor can reach.

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  • Sections: Review every vertical section, not just the first viewport.
  • Slides: If a section has horizontal slides, check each slide separately; a single vertical capture may not include them all.
  • Oversized section content: With scrollOverflow, content taller than the available section height can scroll within that section.
  • Nested scrolling: Elements such as modals or overflowing text can use their own scroll area. The normalScrollElements option allows scrolling within specified nested elements without triggering section movement.

These behaviors are documented by fullPage.js; the site’s own configuration determines which apply. Read the fullPage.js help documentation.

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Choose a capture method

Method Best fit What to check
Browser-native full-page screenshot A quick capture when the browser provides a built-in full-page option. Whether the page’s section and slide behavior is represented; browser restrictions may prevent capture on some pages.
Scrolling screenshot extension A page where successive viewport captures can be stitched into a long image. Browser compatibility, whether the extension can handle the page’s behavior, and whether stitching duplicates or misses fixed content.
Separate captures of sections or slides A very tall, complex or incomplete result that needs reviewable pieces. Label each section and slide so no state is mistaken for a complete page.

Firefox documents a full-page screenshot feature that saves a PNG. See Mozilla’s Firefox screenshot instructions. A Chrome Web Store listing for Full Page Screen Capture describes scrolling through a page, capturing successive screens and stitching them; it lists PNG, JPEG and PDF export. Check the current listing for availability and browser support before installing. View the extension listing.

Capture and inspect the page

  1. Open the site and let it render. Wait for the page to finish loading. If images or other media load lazily, scroll through the relevant sections first and confirm the assets have appeared.
  2. Use the browser’s full-page screenshot option if available. In Firefox, follow Mozilla’s screenshot instructions and save the PNG. Browser menus and feature availability can change, so use the current browser documentation for the exact controls.
  3. Otherwise, use a compatible scrolling extension. Start the capture and wait for its scrolling and stitching process to finish. Confirm the extension supports your browser and the page type.
  4. Review the output from top to bottom. Check every vertical section and any horizontal slides. Inspect nested scroll content separately, and look for missing or repeated fixed headers, sticky elements, overlays and lazy-loaded media.
  5. Split the job if the result is truncated or too large. Use the capture tool’s supported split or export options, or capture sections and slides separately, then verify each piece.

Do not assume the initial viewport or a single stitched image proves the whole site was captured. The page’s interactive states may require separate captures.

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Handling unusually large captures

Very tall images can run into browser or image-canvas size limits. Those limits depend on the browser and capture method, so a stated threshold from one extension is not a universal browser limit. FullPage Capture’s help page describes splitting very large images into parts when its stated Chrome canvas limits are exceeded; treat those thresholds as specific to that tool and subject to change. See FullPage Capture help.

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If a single image fails, is cut off, or becomes impractical to inspect, capture one section or slide at a time, or use the product’s supported split/export function. If you need a PDF rather than a long raster image, confirm that your chosen browser or extension currently supports PDF output.

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Troubleshooting

  • Only one section appears: The page may be using viewport-sized sections or automatic scrolling rather than ordinary document scrolling. Capture after navigating through each section, and verify the output section by section.
  • A horizontal slide is missing: Navigate through the slides and capture them individually; do not treat a vertical page capture as proof that horizontal states are included.
  • Long text or modal content is cut off: It may live in a nested scroll area. Scroll that area separately and capture its contents in one or more pieces.
  • Images are blank or missing: Allow more time for rendering and lazy loading; visit the relevant sections before capture, then take a fresh screenshot.
  • Headers or overlays appear more than once, or not at all: Inspect fixed and sticky elements in the final image. A scrolling-and-stitching method may capture successive viewports at different states; try a browser-native full-page feature or capture smaller sections.
  • The image stops early or fails to export: Reduce the capture to sections or slides, or use the tool’s supported split option. Browser and canvas limits vary by tool and configuration.
  • The browser refuses to capture a page: Some browser pages or restricted contexts cannot be captured. Try the method on the site’s normal browser tab, or use another compatible capture tool.
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Or skip the browser setup

For an API capture, ScreenshotNeo returns an image or PDF from one GET request. The example below uses Stripe as the target; replace it with the URL you want to capture. For a fullPage.js site, inspect whether the response includes the sections and interactive states you need—one request does not remove the need to verify slides or nested scrolling.

ScreenshotNeo API documentation.

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 and failed loads are not billed, and cache hits cost nothing. Its MCP server lets AI agents use screenshot tools, and the free plan includes 1,000 screenshots per month without a card. Paid plans start at $5 for 3,000 shots.

Learn about ScreenshotNeo, or sign up for 1,000 free screenshots a month with no card.

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