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 (next best: 30s)
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 it does it fastest: the next-best engine is about five times slower and buries the file in 100+ junk redactions.
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% | 26 | 6.7s |
| Gemma 4 12B Google | 95% | 123 | 30s |
| Qwen 3 Alibaba | 82% | 182 | 4.5m |
| Phi-4 Microsoft | 81% | 150 | 37s |
| Gemma 3 Google | 78% | 692 | 24s |
| Qwen 2.5 Alibaba | 73% | 163 | 23s |
| DeepSeek R1 14B DeepSeek | 73% | 122 | 4.2m |
| Privacy Filter OpenAI | 72% | 711 | 13s |
| Llama 3.1 Meta | 72% | 271 | 23s |
| Privacy Filter Nemotron OpenMed | 64% | 1297 | 4.4s |
| Apple on-device Apple | 20% | 717 | 1.1m |
| See the complete benchmark: every model, every document, every page side by side → | |||
Same 500-page corpus, same PII targets, every engine run head-to-head.
| Cover | Preview | Acrobat | |
|---|---|---|---|
| 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 Enterprise | ✓ | ✗ | ✗ |
| Works on scans and photos | ✓ | ✗ | ✓ |
| Handles a whole folder | ✓ | ✗ | ✓ |
| Output still usable when shared | ✓ | ✓ | ✓ |
| Export a report of what was redacted Enterprise | ✓ | ✗ | Partial |
| Connect to Ai assistants over MCP | ✓ | ✗ | ✗ |
| Price | $39 once | Free | $23.99/mo |
Acrobat can technically do it, but it's all manual, $23.99 a month, and you still have to find every private detail yourself. Rows marked Enterprise are in the Enterprise plan; everything else is in Consumer.
Same redaction engine in both. Enterprise adds the best redaction editor tools, custom token labels, batch exporting and compliance reports.
Consumer
$39 one-time
Redaction engine w/basic edit tools. No redacted terms or compliance reports.
Enterprise
$249 / year
Redaction engine w/best editor, review tools, batch exporting & compliance reports.
Sent setup tips to your inbox too.
Opening checkout with your email filled in.