How to redact a student ID before sharing a copy

What a student ID reveals

A student ID shows your photo, name, student number, and sometimes a barcode or campus-card payment function. It proves enrollment and unlocks student discounts and campus services.

A student number plus barcode can unlock campus accounts, stored balances, and discounts in your name.

What to redact

• Student ID number and barcode They access your campus accounts and enable discount or account fraud.
• Any campus-card payment chip or number It may be linked to stored funds or building access.

What to keep visible

• Your photo
• Your name
• The institution and expiry, to prove you are a current student

Redact your student ID in 4 steps

1. Pick the photo. Open Cachera and choose the photo of your student ID with the system picker — only that photo is read, never your whole library.
2. Black out the sensitive fields. Drag a black block over the student ID number and barcode and any campus-card payment chip or number. On export the pixels are destroyed — nothing is recoverable underneath.
3. Add a purpose watermark. Stamp who the copy is for, e.g. "For [purpose] only", so it can't be reused elsewhere.
4. Export and share. Lay it out on A4, export a PDF, and share it. Everything stays on your iPhone — nothing is uploaded.

FAQ

What should I black out on a student ID?

Hide student ID number and barcode, any campus-card payment chip or number. Keep your photo and your name visible so the copy is still useful.

Is it safe to send a copy of my student ID?

Only a redacted one. A student number plus barcode can unlock campus accounts, stored balances, and discounts in your name. Black out the sensitive fields, add a purpose watermark, and share a flattened copy so it can't be reused.

Can redacted areas be recovered from the file?

No. Cachera flattens the black blocks into the image on export — there is no layer beneath them, so the covered details cannot be recovered from the PDF.