Limits and supported locks
Handled
| Lock | Status |
|---|---|
| Password to open, which you know (RC4 40-bit and 128-bit, AES-128, AES-256) | Handled. Tested with each encryption revision (2, 3, 4, 5, 6), non-ASCII and Latin-1 passwords. |
| Permission restrictions only (printing, copying, editing) | Handled, if you are allowed to remove them. |
Not handled
| Unknown password | Never. No guessing, cracking or recovery. Free guidance only. |
|---|---|
| Certificate-based protection | Not supported. Detected for free; no charge. |
| Rights management or vendor-specific protection | Not supported and not bypassed. Detected for free; no charge. |
| Damaged or truncated files | Not repaired. Detected for free; no charge. |
| Files that are not PDFs | Rejected for free. |
Size limits
- 20 MB per file
- 80 MB combined per job
- 500 pages combined per job (checked on the unlocked files)
- 10 files per job
- 3 password attempts per file
Digital signatures
A signed or certified PDF cannot be unlocked without breaking its signatures. We warn you first and ask you to confirm. We also report if the file has forms, attachments, a portfolio, tagged structure or a PDF/A claim, since rewriting can affect compliance claims.
Timing
Before you start, we show an estimated time, labeled as an estimate. Progress shown while we work reflects real steps, not a fake percentage.