passport photo face alignment head size eye line app offline
A passport photo can be rejected even when the background is perfect if the head is too large, too small, tilted, or the eyes sit outside the allowed area.
簡短回答
Official photo rules commonly specify a centered, front-facing head, visible eyes, neutral expression, and a head-size range; the U.S. example is roughly 1 to 1 3/8 inches from chin to crown in a 2×2 inch photo. Snapport Lite uses on-device Apple Vision face detection with head-top, eye-line, and chin guides, plus pinch, drag, rotate, and auto-center tools so you can fit the face to the selected template. It is a guide, not an official compliance checker, so compare the result with the issuing authority before submitting.
Try Snapport Lite on a real example first, and check the current App Store listing for exact features and pricing before you decide.
挑選前要注意什麼
- Visible guides for head top, eyes, and chin rather than only a square crop box
- Manual pinch, drag, and rotate controls so you can correct awkward framing
- Auto-center support to quickly bring the face into the template before fine-tuning
- Common country and document templates plus custom sizes for unusual requirements
- Offline processing with no cloud upload, useful for private passport and ID images
實用的決策步驟
- 先確定你最常需要完成的任務。
- 用真實內容或實際情境測試 App。
- 查看隱私標籤與帳號需求。
- 確認匯出與備份選項。
- 選擇你願意長期維持的定價模式。
快速比較
| 需求 | 要確認什麼 | 為什麼重要 |
|---|---|---|
| 定價模式 | 確認實用功能是需要訂閱、一次性解鎖,還是都不用。 | 第一天最便宜的 App,一年後不一定最便宜。 |
| 隱私模式 | 內容敏感時,優先選在裝置上處理的 App。 | 私人文件、履歷、學習資料與家庭內容,都值得謹慎對待。 |
| 匯出/綁定 | 確認檔案格式、分享、備份與刪除的控制權。 | 好的 App 應該幫你完成任務,而不是把你的成果綁死。 |
Snapport Lite 的適用範圍
Snapport Lite is built for exactly this — use the checklist above and test it on a real example.
隱私無廣告裝置端處理
這是由 App 開發團隊親自撰寫的購買指南。App Store 的功能與價格可能會有變動，請在購買前至商店頁面確認詳細資訊。
常見問題
Does Snapport Lite check passport head size?
Snapport Lite provides head-top, eye-line, and chin guides using on-device face detection, which helps you align the photo to a template. It does not certify or guarantee government acceptance.
Why does eye line matter?
Many official rules define where the eyes or face should sit in the final photo. A face that is centered poorly can be rejected even if the photo is sharp and the background is plain.
Can I fix a tilted face in Snapport Lite?
You can pinch, drag, rotate, auto-center, and reset the photo. If the original pose is strongly turned or not front-facing, retaking the photo is usually safer than trying to fix it.