How to Take a Full-Page Screenshot with Vibium

To take a full-page screenshot with Vibium, launch the browser, go() to the URL, then call screenshot(full_page=True) to get PNG bytes of the entire scrolling page and write them to a file. Vibium auto-waits for the page to load, so the capture is complete and not half-rendered. The whole thing is about eight lines of Python.

What is the full-page screenshot script?

from vibium import browser_sync as browser
 
vibe = browser.launch()
vibe.go("https://example.com")
 
png = vibe.screenshot(full_page=True)
with open("full-page.png", "wb") as f:
    f.write(png)
 
vibe.quit()

Run it and you get a full-page.png in your working directory. No driver setup, no Chrome download step — Vibium is a single Go binary that pulls its own browser on first run.

How does each line work?

1. browser.launch() — starts Chrome over WebDriver BiDi and returns a vibe object you drive the page with.
2. vibe.go(url) — navigates and returns once the load event fires, so you are not screenshotting a blank page.
3. vibe.screenshot(full_page=True) — captures the full scrolling document (not just the viewport) and returns it as PNG bytes. Vibium hands you the raw data instead of hiding it behind a file path. Drop the full_page flag and you get just the visible viewport.
4. open(...).write(png) — you decide where the bytes land: disk, an upload, or an in-memory buffer.
5. vibe.quit() — closes the browser and cleans up the process.

The key idea: because screenshot() returns bytes, the image is trivial to pipe somewhere else — a visual-regression baseline, an S3 object, or an AI vision model for verification.

How do I capture the entire scrolling page?

Pass full_page=True to screenshot(). Vibium captures the whole document from top to bottom — everything below the fold included — instead of just the visible viewport. (In the JavaScript client the same option is screenshot({ fullPage: true }).)

from vibium import browser_sync as browser
 
vibe = browser.launch()
vibe.go("https://example.com/long-article")
 
png = vibe.screenshot(full_page=True)
with open("article-full.png", "wb") as f:
    f.write(png)
 
vibe.quit()

Vibium's auto-wait on go() returns once the load event fires, so most pages are ready to capture. If extra content streams in after load, wait for a late-rendering element before you capture — for example, find the footer and read its text, which makes Vibium wait for that element to be present:

footer = vibe.find("footer")
footer.text()  # waits for the footer, then you can screenshot(full_page=True)

Can I screenshot just one element?

Yes. Find the element first, then call screenshot() on it to capture only that region — handy for grabbing a single card, chart, or hero banner:

header = vibe.find("h1")
png = header.screenshot()
with open("header.png", "wb") as f:
    f.write(png)

When should you use full-page screenshots?

• Visual regression — capture a baseline image and diff it on every deploy.
• Bug reports — attach the exact state of the page when something breaks.
• AI verification — pass the PNG bytes to a vision model and ask whether the layout looks right.

Next steps

• The screenshot command reference
• Automate a login flow with Vibium
• What is Vibium?