Gratis · PDF
PDF zwartlakken.
Tekst, nummers en gebieden in een pdf permanent zwartlakken. Zoek woorden of patronen, controleer de vakken en verifieer dat er niets overblijft.
20 MiB · up to 200 pages · processed in your browser, never uploaded. Each page with a box is rebuilt from pixels, so the hidden text, images and vectors are really deleted, not just covered. Pages without boxes stay unchanged.
Zo gebruik je deze tool: PDF zwartlakken
Voer gegevens in of kies een bestand. Pas de instellingen aan, maak het resultaat en controleer het voordat je het kopieert of downloadt.
Limieten en ondersteunde formaten
Je invoer wordt op je apparaat verwerkt.
Technische opmerkingen in het Engels
20 MiB, 200 pages and 2,000 boxes. Search uses the embedded text layer: scanned pages need manual boxes or OCR PDF first. Redacted pages become images (110–300 DPI), so their remaining text is not selectable; links, form fields and comments on those pages are flattened.
Every page that has a box is rendered in your browser, the boxes are painted into the pixels and the page is rebuilt as a single image, so the covered text, images and vectors are deleted rather than hidden. Pages without boxes are copied unchanged. Title, author, subject and XMP metadata are removed by default; bookmarks, attachments and digital signatures are never carried over. After export the file is re-read: the tool confirms that no selectable text is left on redacted pages and lists any page where your search terms still appear.
Remove a name, an email address and an IBAN from a two-page statement before sharing it.