遮盖敏感信息
永久遮盖身份证、护照、银行账户、信用卡和税号、电话、电邮、出生日期，或你标记的任何位置。
使用方法
- 拖放 PDF。程序会自动找出身份证和护照号码、银行账户、信用卡和税号、电话、电邮和出生日期，并加上方块。
- 逐页核对：拖动方块可移动，拖角落可调整大小，按 × 删除，在页面空白处拖曳可画新方块。
- 确认最后一页后下载。黑色方块下的内容会从文件中删除，不只是遮住。
疑难解答
扫描版的页面找不到任何信息。
扫描版没有文字可以搜索。请手动画方块，或先用文字识别（OCR）工具处理。
其中一页变成了图片。
如果某页有无法直接修改的内容（例如特殊字体，或方块下有非 JPEG 图片），只有那一页会转成图片再涂黑，确保不会泄漏。其他页面保留原本的文字、清晰度和大小。
常见问题
Is the text really gone, or just hidden?
Gone. The text under each box is taken out of the page itself, image pixels under it are blackened, notes and links under it are dropped, and a black box is drawn on top — nothing replaced is kept anywhere in the file. The rest of the page stays as it was. If a page holds something that can't be edited in place, that page alone is rebuilt as a picture with the boxes painted in.
Does it find the personal data for me?
It proposes boxes over ID numbers (Hong Kong, Macau, Taiwan, mainland, Singapore, Malaysia, US, UK), passport numbers, bank accounts, IBAN, SWIFT and card numbers, tax and company numbers, phone numbers, emails and dates of birth. You check every page and can move, add or remove boxes before anything is removed.
Is my file uploaded?
No. Finding and removing both run on your device.