For a GST Portal page that is publicly accessible without signing in, ScreenshotMachine’s Website to PDF API can convert its URL to a PDF. You need a ScreenshotMachine customer key and can specify paper size, orientation, screen or print rendering, background, and a rendering delay. The documentation does not establish that it can capture pages behind GST Portal login, CAPTCHA, or OTP checks.
Capture a public GST Portal page with ScreenshotMachine
ScreenshotMachine documents a Website to PDF API that accepts a page URL and requires a customer key. Use it only for a page you can access publicly; the steps below do not complete GST Portal authentication.
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- Check the target URL in a browser where you are not signed in. If it redirects to login or requests CAPTCHA or OTP, treat it as an authenticated page rather than a public capture.
- Choose the PDF options that suit the page: paper size, portrait or landscape, screen or print rendering, background, and—if content needs extra time to render—a delay.
- Send the URL and your customer key to ScreenshotMachine’s documented Website to PDF endpoint, using its current parameter names and values as shown in its Website to PDF API documentation.
- Open the returned PDF and check that the relevant content is present, readable, and laid out as intended. Review it for sensitive information before storing or sharing it.
The API documentation describes the endpoint and settings, but the source material available here does not specify the exact request syntax or parameter names. Follow the current documentation rather than guessing at an endpoint or constructing an unverified command.
Choose PDF settings for the page
| Setting | When to use it |
|---|---|
| Paper size | A4 is one listed option. Select a size that keeps the page legible and suits how the PDF will be used. |
| Portrait or landscape | Choose based on the page’s width and the information that must remain readable. |
| Screen or print media | Screen mode aims to retain the webpage’s browser-like appearance. Print mode is described as omitting web-specific graphics and elements considered unnecessary for print. |
| Background | Set the documented background option according to the appearance you need in the PDF. |
| Delay | Use a wait before conversion if animation or late-loading content needs time. A delay is not a way to pass a login, CAPTCHA, or OTP check. |
ScreenshotMachine also documents cookies, click and hide selectors, and an accept-language option for supported captures. These settings can affect rendering, but their presence does not establish that the service can authenticate to the GST Portal or bypass its security checks. See the Website screenshot API documentation for those capture controls.
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What changes for pages behind GST Portal login
The GST Portal’s official login manual describes a CAPTCHA step and, in specified circumstances such as a first login or a new device, a second authentication round with an OTP sent to the registered mobile number and email. ScreenshotMachine’s reviewed documentation does not provide a GST-specific login procedure or verify that a private, authenticated GST page can be captured.
Do not infer that the documented cookie option handles GST Portal authentication, and do not give a third party your GST credentials or session cookies. If the page requires sign-in, use an export or print option available within the portal, if one is provided, or capture it through a method you or an authorized representative can use in an authenticated browser, subject to portal rules and your organization’s handling of tax records.
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Check the PDF before relying on or sharing it
- Confirm that the intended page—not a login, CAPTCHA, error, or redirect page—was captured.
- Check that important text, tables, and figures are legible and not clipped by the selected paper size or orientation.
- Verify that content expected to load later has appeared; a delay may help with rendering time but cannot resolve access restrictions.
- Review the PDF for tax or personal information before saving it in a shared location or sending it to someone else.
The GST Self Service Portal says users may attach screenshots to explain portal complaints, but its guidance does not specify ScreenshotMachine or guarantee that a PDF generated by it will be accepted. See the GST Self Service Portal for support guidance.
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Or skip the browser setup
For a public page, ScreenshotNeo can return a PDF from one GET request. Its documented features include removing cookie banners, newsletter popups, and chat widgets before capture; bot checks, blank pages, and failed loads are not billed. An MCP server lets AI agents take screenshots, and the Free plan includes 1,000 screenshots a month without a card; paid plans start at $5 for 3,000.
Example request for a PDF:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://www.gst.gov.in/ -d format=pdf -o gst-portal.pdfSee the ScreenshotNeo API documentation for supported PDF options. Its cookie and cleanup features do not establish that it can complete GST Portal login, CAPTCHA, or OTP authentication; use this request only for a publicly accessible page.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Frequently Asked Questions
Does ScreenshotMachine require a customer key for its Website to PDF API?
Yes. Its API documentation says a customer key is required.
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Does a longer delay make ScreenshotMachine pass GST Portal CAPTCHA or OTP?
No. The documented delay waits before conversion; it is not a documented authentication method.
Does GST support guarantee it will accept a ScreenshotMachine-generated PDF?
No such guarantee is established. GST support guidance mentions screenshot attachments for complaints but does not specify ScreenshotMachine or PDF acceptance.
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