PDF whiteout: cover content on a page

Place a solid white box over content you don't want on screen or on paper. Drag the area on a live preview, or type exact coordinates. It runs entirely on your device, it is free, and there is no account to create.

or drop a PDF here One file at a time · never uploaded · nothing kept

Read this before you rely on it: covering is not redaction. A white box hides what is underneath on screen and in print. The text and images underneath are still in the file, and anyone who selects the area, extracts the text, or opens the file in another tool can still get at them. If you need content to be genuinely gone (a regulated document, a legal disclosure, anything that will be audited), do not use a white box. Delete the content in the tool that created the file, or flatten the page to an image before sharing it.

How the covering works

Choose a PDF. The tool reads the file and shows how many pages it has, without leaving your device.
Pick the page and see it. Pressing Show a live preview renders that page in your browser. This is the only action that downloads the PDF engine: about 10 MB uncompressed, served compressed (roughly 4.4 MB over the network), cached afterwards.
Mark the area. Drag a box across the preview, or press a preset such as Top band, or type coordinates yourself. Measurements are in PDF points from the bottom-left corner; A4 is 595 × 842 pt.
Apply, check, download. The tool re-renders the page with the box in place so you can see where it landed. Apply as many covers as you need; each one builds on the last.

When a white box is the right answer

It is the honest fallback for the case nothing else can fix: a mark that was drawn straight into the page content, where there is no separate object to delete. Covering is also the pragmatic choice for the everyday cases: hiding a signature block or an old price on a copy you are sending to a colleague, taking a client name off a screenshot-to-PDF, blanking a header that the template keeps adding.

For a watermark you own and want gone properly, use Remove watermark from PDF first: if the mark is a layer or an annotation, it can be genuinely deleted instead of covered.

Rotated pages and awkward layouts

Coordinates are always in the page's own coordinate system, measured from its bottom-left corner. If a page is rotated in the file, the preview shows it the way a reader would display it, and the drag-to-select maths accounts for the rotation so the box still lands where you drew it. When the preview and the numbers disagree or the page has an unusual media box, trust a test download: apply, download, look, adjust.

One thing to do afterwards

Open the downloaded file and check the cover sits where you meant it to. Two or three rounds of adjusting is normal, especially on a page with wide margins. There is no undo inside the tool: each download is a new file, so the original always stays as it was.

What this does not do. It does not remove a watermark that is part of a scanned image, and it does not guess. There is no OCR pass and no image inpainting here: those are different problems, and a tool that claims to solve them on any file is usually showing you a demo rather than your document. Covers on this site hide content visually; they do not make it unrecoverable.

Questions

Can I cover the same area on every page?

Yes, one page at a time: set the page number, apply the cover, move to the next page, and apply again. Each cover adds to the working copy, and the download contains all of them.

Can I remove a cover after applying it?

You cannot undo a cover inside the tool. Nothing is destructive, though: start over with the original file and apply only the covers you want. Your source file is never modified.

Is it safe for confidential documents?

For keeping something out of casual sight, yes. For anything that must be genuinely unrecoverable, no see the warning above. A white box is a visual treatment, and the underlying content remains extractable.

Do I have to download the PDF engine to use this?

Only for the live preview. You can skip it entirely and type coordinates, which keeps the page's footprint to the small core library.