Xuân Hiếu1S

Terms of use

This site presents the products made by Pham Xuan Hieu. These terms cover the website; each product has its own terms and policies.

Scope

These terms apply when you read and use 1s.xuanhieu.org. The site sells nothing, has no accounts and collects no personal data; see the privacy page.

Product terms

When you download, buy or use a product, that product's own terms apply:

  • 1xQuickConvertFormat: EULA and privacy policy.
  • Bình Dân Học Vụ Số Pro: plans, duration and activation on its product page (Vietnamese).
  • Save Image as JPG, PNG, WebP: privacy policy and its Chrome Web Store listing.

Content

Content on this site presents the products. I try to keep it accurate and date any figures; when a product changes, its own page is the most current source.

Text, images and brand assets on this site are the copyright of Pham Xuan Hieu, except the fonts, which are released under the SIL Open Font License with their licences published alongside. Short quotes with a link back are welcome.

Changes and contact

These terms may be updated; the date of the last update is shown below. Questions about them: mail@xuanhieu.org.

Last updated: 20 October 2026.