One click. No rectangle drag.
Missed something? Click the word. Done.
Drop your PDFs into Cover first. Be assured your private info is removed (redacted) before exposing it to Ai.
Ask Ai about finances, medical records or legal papers without handing it your identity, or your client's.
Animation: a question is typed into an Ai chat, then a PDF is dragged from the desktop into Cover. Cover replaces the personal details on the page with labels like NAME_1, and the redacted copy is dragged into the chat, which answers using the labels instead of the real details.
Run it on your own documents.
Missed something? Click the word. Done.
Ai can answer the same question whether or not your address is in the document.
Redact your bank account number on page 1; we cover every other instance automatically.
Cover's engine & intuitive redaction editor cuts your time in half compared to Acrobat or Apple's Preview app. Same document, both apps:
Real-time recordings, not sped up. Cover redacts almost all of it on its own, and you add the one it missed with a single click. With Acrobat, you draw every rectangle by hand.
“No more rectangle drag.”
personal info (PII) caught by Cover
median time per PDF (fastest rival: 0.1s, at 370 junk redactions)
engines benchmarked, every result below
We ran Cover against every serious local Ai engine on the same documents. It catches more private information than any of them, and the best of them still buries the file in 157 junk redactions you have to clean up by hand.
Acrobat and Preview can redact text, but you draw every box by hand and hunt down each detail yourself. Cover finds the private information for you, and fixing anything takes one click.
| Engine | Personal info caught | Wrongly hidden | Median time / PDF |
|---|---|---|---|
| Cover | 100% | 12 | 3.2s |
| Gemma 4 12B Google | 93% | 157 | 26s |
| Phi-4 Microsoft | 75% | 149 | 37s |
| Qwen 3 Alibaba | 75% | 188 | 4.5m |
| Qwen 2.5 Alibaba | 65% | 167 | 23s |
| DeepSeek R1 14B DeepSeek | 63% | 122 | 4.1m |
| Llama 3.1 Meta | 67% | 260 | 24s |
| Apple on-device Apple | 50% | 129 | 4.6s |
| Gemma 3 Google | 69% | 623 | 24s |
| Privacy Filter OpenAI | 63% | 709 | 13s |
| Rampart America.gov | 36% | 370 | 0.1s |
| Privacy Filter Nemotron OpenMed | 41% | 1290 | 4.4s |
| See the complete benchmark: every model, every document, every page side by side → | |||
Same 18 real-world documents, 113 pages, same PII targets, every engine run head-to-head.
| Cover | Preview | Acrobat Pro | |
|---|---|---|---|
| Finds personal info on its own | ✓ | ✗ | Partial |
| Zero setup, no checkboxes | ✓ | N/A | ✗ |
| Works without the internet | ✓ | ✓ | Partial |
| Click a word to redact it | ✓ | ✗ | ✗ |
| Redact a name everywhere with one click | ✓ | ✗ | Partial |
| Click a redaction to remove it | ✓ | ✗ | ✗ |
| Remove a whole group of redactions at once | ✓ | ✗ | ✗ |
| Un-redact whole pages at once | ✓ | ✗ | ✗ |
| See every redaction in a list, toggle any | ✓ | ✗ | ✗ |
| Works on scans and photos | ✓ | ✗ | ✓ |
| Handles a whole folder | ✓ | ✗ | ✓ |
| Output still usable when shared | ✓ | ✓ | ✓ |
| Export a report of what was redacted | ✓ | ✗ | Partial |
| Connect to Ai assistants over MCP | ✓ | ✗ | ✗ |
| Price | $99/yr | Free | $239.88/yr |
Acrobat can technically do it, but it's all manual and you still have to find every private detail yourself. Every row here is in every Cover plan.
Drop your PDFs into Cover. You hold the final say on what stays covered. Rest assured, your private information stays private. No more wondering what Ai might do with your identity.
Personal
$99 / yearSave 31%
$12 / month
that's $8.25 a month, billed once a year
billed every month
14-day money-back guarantee
14-day money-back, first month
For one person redacting their own documents, on all their Macs.
Business
$249 / seat / yearSave 28%
$29 / seat / month
that's $20.75 a seat a month, billed once a year
billed every month, per seat
14-day money-back guarantee
14-day money-back, first month
For a team or organization redacting on behalf of clients, customers, or the public.