Privacy policy
Schematic Viewer has no accounts and never uploads your schematic files. What information the site handles, cookies, advertising and your rights.
Schematic Viewer (the "site", https://schematicviewer.com) respects your privacy and follows applicable law, including Korea's Personal Information Protection Act. This policy explains what information the site handles and how.
1. We do not collect your schematic files
- The PDF you open is read and analyzed only inside your browser.
- The file, its name, its contents and the analysis results are never sent to the operator's servers or third parties, nor stored. The site has no server program that could receive files.
- The file stays in your browser tab's memory and is gone when you open another file, reload or close the tab.
- Opening the example schematic downloads the example PDF from this site; nothing of yours is uploaded.
2. Information handled
There are no accounts, logins or forms, and we do not ask for your name or contact details. The following may be handled:
| Item | Who handles it and why | Retention |
|---|---|---|
| Access logs (IP address, requested URL, time, browser) | Recorded automatically by the host, GitHub (GitHub Pages), to provide and secure the service. The operator does not receive or use these logs. | Per the GitHub privacy statement |
| Language setting | Your chosen language (Korean/English) is kept in your browser's localStorage so it is remembered next time. It is not sent anywhere. | Until you clear browser data |
| Visitor statistics | See section 3 | Per Google's policies |
| Advertising data | See section 4 | Per Google's policies |
| Messages you send (email address, content) | Used only to reply when you contact us by email or GitHub issues. | Deleted within one year after the reply (you can delete GitHub issues yourself) |
3. Visitor statistics
We use Google Analytics 4 for visitor statistics. It uses cookies (such as _ga) to collect pages visited, approximate location, device and browser type and referral source, processed under Google's policies. The only additional events this site sends are:
| Event | Values sent |
|---|---|
file_open | how the file was opened (picker / drag and drop), file size in KB |
example_load | that the example schematic was opened |
view_complete | number of pages, nets and parts, analysis time, whether a text layer exists |
error | error type (not a PDF, password, read failure, no line data, drawing failure) |
File names, file contents and text read from a drawing (references, net names …) are never sent. To opt out, block cookies in your browser or install Google's Google Analytics opt-out browser add-on.
4. Advertising and cookies
The site may show Google AdSense ads to cover running costs.
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this site or other websites.
- Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.
- You can turn off personalized advertising in Google My Ad Center, and opt out of other vendors' personalized-advertising cookies at www.aboutads.info.
- How Google uses information from partner sites: policies.google.com/technologies/partner-sites.
- Visitors in the EEA, the UK and Switzerland are asked for consent before advertising cookies are used, through Google's consent management.
Ads have no access to your schematic files, and file contents are never used for advertising.
5. Refusing cookies
You can block or delete cookies in your browser settings (for example Chrome: Settings → Privacy and security → Third-party cookies). Viewing schematics keeps working with cookies blocked.
6. Sharing and processors
The operator does not provide or sell personal information to third parties. The services named in sections 2–4 (GitHub, Google) process information under their own policies, possibly on servers outside Korea (for example in the United States).
7. Your rights
You may ask to access, correct, delete or stop the processing of personal information the operator holds about you (such as your messages). Contact us below and we will act without delay. The site does not knowingly collect personal information from children under 14.
8. Privacy officer and contact
- Privacy officer: the site operator
- Contact: jwankim.sys@gmail.com, contact page, GitHub issues
9. Changes
If this policy changes, the changes and their effective date will be posted on this page.
Effective: 2026-10-09