Question 1

How is it different from drawing a black box?

Accepted Answer

A drawn box only covers: the text is still inside the file and can be copied. When you redact, the text, its hidden copies and the strokes under the box are deleted from the file.

Question 2

What if the data is in a photo or a scanned document?

Accepted Answer

That page is turned into an image with the area in black, which is the safe way to remove it. The rest of the pages do not change.

Question 3

Is it free?

Accepted Answer

Yes. All LeuPaPDF tools are free and you do not need to sign up.

Question 4

Are my files uploaded to a server?

Accepted Answer

No. The file is processed inside your browser, on your device. Nobody else can see it and it is gone when you close the tab.