Cover Aadhaar numbers, addresses, or contract clauses in this tab. Flatten so the box is not a removable overlay. The file is not uploaded.
A black rectangle drawn in a hosted editor is often an annotation. Someone can delete the box and read the number. Redaction that counts burns the mark into the pixels. Here you draw the boxes on the page in this tab, then flatten or compress so the download is an image. The digits are not still sitting in a text layer under the box.
That is the right fallback for a scan you already have. It is not the same as UIDAI’s masked Aadhaar, which the authority generates with the first eight digits hidden. Download that official file when the other party will accept it. Use this tool when you only have a photograph or a full printout.
Contracts are the other everyday case: a rent clause, a bank account in a footer, a witness address. Cover only what the recipient should not see, preview every page, then download.
No. The boxes are drawn in this browser tab. Document bytes are not sent to pdfonbrowser.com.
Only if it is burned in. Flatten or compress afterward so the page is an image, then search the download for the number you meant to hide.
No. Masked Aadhaar is a file UIDAI generates. A redacted scan is your picture with marks on it. Prefer the official download.
No. It looks for patterns such as 12-digit groups. Noisy scans miss. Preview, and draw the rest yourself.