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Use driver.print_page() when you need a PDF of the browser’s printed page layout. Use driver.save_screenshot() when you need the pixels in the current window, then convert the resulting PNG to a PDF with a separate image/PDF library. Selenium does not turn a screenshot into a PDF merely because you give the file a .pdf extension.
This distinction matters on Windows: print-to-PDF and screenshot-to-PDF have different output, browser requirements and failure modes. The examples below use absolute Windows paths, clean up the browser reliably and show both workflows.
Choose the PDF you actually need
| Requirement | Use | Result |
|---|---|---|
| A document-like PDF following the page’s print rendering | driver.print_page() |
PDF data returned by Selenium, encoded as base64 |
| A PDF that contains exactly the captured window image | save_screenshot(), then an image/PDF conversion step |
PNG pixels embedded in a PDF |
Browser print output and a screenshot can differ substantially. Print stylesheets, page breaks and printable colors may change the layout. A screenshot captures what was painted in the current viewport; it does not automatically become a paginated document.
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Prerequisites on Windows
- Python installed and available as
python(or use the Python launcher,py). - Selenium installed in the environment that runs your script:
py -m pip install selenium. - A Chromium browser (such as Chrome or Chromium) for the documented print workflow. Selenium Manager can obtain a compatible driver in many current Selenium installations, but the exact browser/driver compatibility depends on the versions installed on your machine.
- A URL that the process can reach, and permission for Python to create the output directory and write files.
Create a project directory and run the script from there, or use absolute paths so the file is not accidentally written to an unexpected working directory.
Method 1: print the current Selenium page to a PDF
This is the direct solution when “PDF” means the browser’s rendered/printed page, not a bitmap of the window.
Complete Python example
from pathlib import Path
import base64
from selenium import webdriver
output = Path(r"C:reportspage.pdf")
output.parent.mkdir(parents=True, exist_ok=True)
options = webdriver.ChromeOptions()
options.add_argument("--headless")
driver = webdriver.Chrome(options=options)
try:
driver.get("https://example.com")
pdf_base64 = driver.print_page()
output.write_bytes(base64.b64decode(pdf_base64))
print(f"Wrote {output}")
finally:
driver.quit()Path(r"C:reportspage.pdf")uses a raw string, so backslashes are not interpreted as Python escape sequences.mkdir(...)creates the destination directory if it does not already exist.- The headless option is set before creating the Chromium driver, as required by Selenium’s documented Chromium print support.
print_page()returns base64-encoded PDF data. Decode it and write the resulting bytes with a.pdffilename.- The
finallyblock closes the browser even if navigation or printing raises an exception.
Controlling print output
The Selenium print API accepts print options for the page representation, such as orientation, page size, margins, scale, background graphics and page ranges, depending on the Selenium version and browser implementation you have installed. Check the API documentation for the options exposed by your installed release rather than assuming every browser supports every setting. If a particular option is ignored, first verify the browser and Selenium versions, then inspect the resulting PDF.
Printing captures the current document state. Navigate first, wait for content that your page loads asynchronously, and interact with the page before calling print_page() when those interactions affect the output.
Method 2: capture a screenshot, then make an image PDF
Use this route when visual fidelity to the current window is more important than print pagination. Selenium’s screenshot method produces PNG data on disk; changing only the extension to .pdf does not convert it.
Save the PNG
from pathlib import Path
from selenium import webdriver
png_path = Path(r"C:reportspage.png")
png_path.parent.mkdir(parents=True, exist_ok=True)
driver = webdriver.Chrome()
try:
driver.get("https://example.com")
driver.save_screenshot(str(png_path))
print(f"Wrote {png_path}")
finally:
driver.quit()Pass a full filename, including .png. The call captures the current browser window, so set the window size or use the appropriate headless configuration if a particular viewport is required.
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Convert the PNG with a separate library
Selenium documents the capture operation, not a preferred conversion package. One practical Python implementation is Pillow; install it separately with py -m pip install pillow:
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image = Image.open(r"C:reportspage.png").convert("RGB")
image.save(r"C:reportspage.pdf", "PDF", resolution=150.0)This creates a PDF page containing the screenshot pixels. It does not recreate selectable HTML text or the browser’s print layout. Large screenshots can produce large PDFs; reduce the image dimensions or choose an appropriate resolution only when that trade-off is acceptable.
Keep capture and conversion in one script
from pathlib import Path
from selenium import webdriver
from PIL import Image
folder = Path(r"C:reports")
folder.mkdir(parents=True, exist_ok=True)
png_path = folder / "page.png"
pdf_path = folder / "page-image.pdf"
driver = webdriver.Chrome()
try:
driver.get("https://example.com")
driver.save_screenshot(str(png_path))
finally:
driver.quit()
with Image.open(png_path) as source:
source.convert("RGB").save(pdf_path, "PDF", resolution=150.0)
print(f"Wrote {pdf_path}")Full-page and dynamic-content considerations
A normal screenshot is a capture of the current window, not automatically an entire, infinitely scrolling document. If the page uses lazy-loaded images, scroll through the page or otherwise trigger loading before capture, then choose a capture strategy that matches your required dimensions. For print output, the browser’s pagination and print CSS determine what appears on each page.
For pages that render after JavaScript runs, wait for a meaningful condition instead of immediately printing after get(). A typical Selenium wait is:
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
WebDriverWait(driver, 30).until(
lambda d: d.find_element(By.CSS_SELECTOR, "main")
)Replace main with a selector that exists only when the content you need is ready. This prevents a successful-looking PDF from containing an empty shell.
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Windows paths, permissions and repeatable output
- Prefer
Path(r"C:reportspage.pdf")or build paths withpathlib; avoid unescaped strings such as"C:reportspage.pdf", where sequences such asrcan be interpreted by Python. - Create the parent directory before starting the capture.
- Ensure the account running Python can write to that directory. A protected folder can cause a permission error even when the browser loads correctly.
- Use distinct names for concurrent jobs. Two processes writing the same PDF can overwrite one another.
- Check
Path.exists()andPath.stat().st_sizeafter the operation when a pipeline must fail fast on missing or empty output.
Troubleshooting common failures
“The PDF is actually a PNG” or no PDF is created
save_screenshot() writes PNG. Use print_page() for browser PDF output, or convert the PNG with an image/PDF library. Do not just rename the extension.
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Print fails in headed Chrome
Selenium documents Chromium printing with headless mode. Add options.add_argument("--headless") before constructing the driver. If it still fails, verify that Selenium, the browser and its driver are compatible on that Windows installation.
“No such file or directory”
The parent directory does not exist, or the path was interpreted incorrectly. Create it with mkdir(parents=True, exist_ok=True) and use a raw Windows string or pathlib.
The PDF is blank or missing late content
The capture happened before JavaScript or network-loaded content finished. Wait for a page-specific element, perform required clicks or scrolling, and then call the print or screenshot method.
Output looks different from the visible browser
Print-to-PDF uses print rendering, which can apply print CSS and pagination. If the PDF must look like the window, capture PNG pixels and convert that image instead.
Permission or locked-file errors
Write to a directory the Python account controls, close the PDF in applications that lock files, and use a new filename for each run.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Performance and reliability choices
- Print path: one Selenium operation returns PDF data, but page layout, fonts, print CSS and browser pagination affect the result.
- Image path: adds a conversion step and can create larger files, but preserves the captured pixels.
- Repeatability: fix the viewport, wait condition and URL state; dynamic ads, animations and personalized content can otherwise change captures between runs.
- Cleanup: always call
driver.quit()infinallyso failed jobs do not leave browser processes running.
The Selenium documentation does not provide a complete current Windows version matrix or a guarantee that every site will render identically. Treat browser and Selenium upgrades as compatibility changes and validate representative pages after upgrading.
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Or skip the browser setup
ScreenshotNeo is a website screenshot API and MCP server. One request returns a PNG, JPEG, WebP or PDF. It removes cookie/consent banners, newsletter popups and chat widgets before capture; bot checks, blank pages, timeouts, failed loads and cache hits are not billed, with the response identifying the page verdict and billing status. Its MCP server exposes take_screenshot, get_page_info and capture_pdf to Claude, Cursor and other MCP clients.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsFor the API details and all options, see the ScreenshotNeo documentation. A PDF request can be made without installing Selenium:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpThe same endpoint from Python:
import requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://stripe.com"}, timeout=90)
open("shot.webp", "wb").write(r.content)And Node.js:
const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);ScreenshotNeo supports print settings for PDFs, full-page captures, selectors, device and viewport choices, custom CSS/JavaScript, waits, cookies and headers, blocking rules, caching, signed links, asynchronous webhooks, bulk capture and a usage API. Every feature is on every plan: 1,000 shots per month are free with no card; paid plans start at $5 for 3,000 shots. Create a free ScreenshotNeo account.
Which method should you use?
- Choose
print_page()for a browser-generated document suitable for print-style pagination. - Choose screenshot plus conversion when the PDF must contain the visible window as an image.
- Choose ScreenshotNeo when you want a hosted one-call capture, consent and widget cleanup, billing only for clean shots, or MCP tools for AI agents.
Frequently Asked Questions
Can Selenium save a screenshot directly as a PDF?
No. Selenium’s screenshot method writes PNG output. Use the print API for a browser PDF, or convert the PNG with a separate library.
Does print_page() capture the whole webpage?
It produces the browser’s printed page representation. Pagination and print CSS determine how content is distributed across PDF pages; it is not the same as a pixel-perfect full-page screenshot.
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Why is a Windows absolute path recommended?
It avoids uncertainty about the process working directory and makes backslash escaping explicit. A raw string or pathlib path also prevents accidental escape-sequence handling.
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