Redact privileged information, protect client files, sign engagement letters, and strip hidden metadata before filing — every operation runs locally in your browser. No document you touch here is ever transmitted to a server.
Most online PDF tools work by uploading your file to their servers, processing it there, and deleting it some time later. For a birthday invitation that's harmless. For a document covered by attorney-client privilege or work-product protection, it introduces a third party into the chain of custody — a vendor with its own servers, its own staff, its own breach history, and its own subpoena exposure.
PDFree's tools run entirely as WebAssembly and JavaScript inside your browser. A client contract, a discovery document, or a settlement draft is read into your device's memory, processed there, and the result is handed back to you — no upload occurs at any point, so there is no third-party processor to disclose, no data-sharing agreement to negotiate, and no server log of the document's existence.
Verify it: open any tool below, press F12 for DevTools, click the Network tab, and process a file. You'll see the app's own code load — and no request anywhere carrying your document's bytes.
Not every "black box over text" tool actually removes the underlying content — some only draw an opaque rectangle on top, leaving the original text still present in the PDF's internal structure and recoverable by copy-paste or a simple text search. That distinction matters enormously for privileged or confidential material.
| Redact PDF (this tool) | A simple "cover" tool | |
|---|---|---|
| Underlying text still in the file | No — removed at the object level | Yes — hidden underneath the box |
| Recoverable by copy-paste or text search | No | Yes, in many PDF viewers |
| Suitable for privileged/confidential text | ✓ Yes | ✗ Not recommended |
Always use the dedicated Redact PDF tool — not a generic annotation or "cover area" feature — for anything that needs to actually disappear from the document.
No budget for enterprise document-management software, but the same need to keep client files off third-party servers.
Redacting PII and privileged text from discovery bundles before they go out the door.
Reviewing and signing contracts without routing every draft through a vendor's cloud.
Need a step-by-step walkthrough that combines filling, signing, and locking a contract? See the Fill, Sign & Flatten guide.
The Redact PDF tool performs true redaction — the page is rasterized and the content under the box is removed at the object level, not just covered. It cannot be recovered by copy-paste or text search. This is different from a generic "cover area" tool elsewhere on the site, which only draws an opaque box — always use Redact PDF specifically for privileged material.
Yes. Because processing is entirely local and no file is ever uploaded, there is no third-party processor with access to the content — which sidesteps the waiver-of-privilege concern that can come with uploading to a cloud service.
Yes, using the Metadata tool. PDFs often carry hidden author, software, and timestamp properties worth stripping before filing or exchanging with opposing counsel.
PDFree adds a visual signature (drawn, typed, or uploaded), not a certified digital signature with a cryptographic audit trail. This satisfies the US ESIGN Act and UETA for most contracts and engagement letters. For matters needing a qualified electronic signature or certified audit trail, use a dedicated certified e-signature provider.
Since no file is uploaded anywhere, PDFree doesn't introduce a new third-party data processor into the firm's workflow. Many firms still confirm internally before use on client matters, but the technical risk profile is close to a local desktop tool.