Blur is not a redaction tool
It is useful for a softer look, but it should not be treated as a reliable way to hide names, addresses or other private information. Use a purpose-built mosaic or solid cover when information truly must be concealed.
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Apply blur or lightweight sharpening to an image and export it.
Soften an image with Blur or add a light sharpening effect to make edges appear clearer, then export the result as PNG.
The sharpening option is a lightweight visual adjustment. It cannot reconstruct detail that was lost to focus blur or camera shake.
It is useful for a softer look, but it should not be treated as a reliable way to hide names, addresses or other private information. Use a purpose-built mosaic or solid cover when information truly must be concealed.
Higher values make edges and text stand out, but they can also make noise and contrast look harsher. A small change is usually enough for screenshots and interface captures.
One softens the image while the other tries to increase apparent definition. Raising both aggressively can create an artificial result, so decide which direction you actually need and adjust that one first.
After staring at an edited image for a while, strong processing can start to look normal. Flip back to the original once before export; halos, harsh contrast and excessive softness are easier to notice that way.