One click. No rectangle drag.
Missed something? Click the word. Done.
Drop your PDFs in Cover first. Be assured your private info is removed (redacted) before exposing it to ChatGPT or Claude.
Below are all great questions to ask your favorite Ai. But why expose you, or your client's identity to Ai when you don't have to?
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 the entire document automatically. With Acrobat, you draw every box by hand. No more rectangle drag.
personal info (PII) caught by Cover
median time per PDF (fastest rival: 4.4s, at 1297 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 160 junk redactions you have to clean up by hand.
Acrobat and Preview can black out 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 | 98% | 19 | 6.1s |
| Gemma 4 12B Google | 97% | 160 | 26s |
| Phi-4 Microsoft | 81% | 150 | 37s |
| Qwen 3 Alibaba | 82% | 182 | 4.5m |
| DeepSeek R1 14B DeepSeek | 73% | 122 | 4.2m |
| Qwen 2.5 Alibaba | 73% | 163 | 23s |
| Llama 3.1 Meta | 72% | 271 | 23s |
| Gemma 3 Google | 78% | 692 | 24s |
| Privacy Filter OpenAI | 72% | 711 | 13s |
| Apple on-device Apple | 16% | 241 | 1.8m |
| Privacy Filter Nemotron OpenMed | 64% | 1297 | 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. Redaction isn't in Acrobat Standard at all: it starts at Acrobat Pro, $239.88 a year. Every row here is in every Cover plan.
You get an engine that finds and redacts private information on its own, and the most intuitive editor for proofreading every page before it leaves your Mac. Acrobat Pro, the cheapest Adobe plan that can redact at all, runs $239.88 a year and still makes you find every private detail yourself.
Personal
$99 / year
that's $8.25 a month, billed once a year
14-day money-back guarantee
For one person redacting their own documents, on all their Macs.
Business
$249 / seat / year
billed once a year, per seat
14-day money-back guarantee
For a team or organization redacting on behalf of clients, customers, or the public.
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