Private browser PDF editing

Redact PDF content securely online.

Draw over sensitive content and create a new PDF with the covered text and graphics permanently removed from marked pages.

How to redact a PDF securely online

1. Choose a PDF from your device.
2. Open each page containing sensitive content.
3. Drag a black redaction area over every item that must be removed.
4. Apply the redactions, download the new PDF, and verify it before sharing.

Permanent redaction instead of visual whiteout

PDFMech rebuilds each marked page with black areas baked in instead of placing a removable visual cover over the original content.

Private browser-local PDF redaction

Page previews, redaction, PDF generation, validation, and download happen in your browser without uploading the source document.

Redaction limits and verification

Marked pages lose selectable text, links, forms, annotations, and accessibility structure. Reopen the result and verify sensitive content cannot be searched, copied, or revealed.

Redact PDF content securely online FAQ

Is secure redaction different from whiteout?

Yes. Whiteout adds a visual cover. Secure redaction rebuilds marked pages without retaining the underlying PDF text or graphics beneath selected regions.

Does PDFMech upload my document?

No. Page previews, redaction, PDF generation, validation, and download happen locally in your browser.

Will all pages become images?

No. Only pages containing redaction areas are flattened. Unmarked pages are copied natively into the new PDF.

Can redactions be undone after download?

No. Applied redactions are permanent in the generated copy. Your original source PDF remains unchanged on your device.