Overlay a text watermark on a photo of your ID card so it can't be reused. It runs in your browser and nothing is uploaded.
Say who the copy is for and add the date. The more specific the text, the harder it is to reuse. A watermark lowers the risk but does not remove it, so only send ID copies when needed.
No. Everything is processed in your browser.
Name the receiving organization, the purpose and the date, for example: For job application at Company A, 18/10/26
Yes. It runs in the browser on iPhone and Android, with no app to install.
Nowhere. Files are processed only in your browser, are never uploaded to a server, and are gone when you close the page.