Why Tools Ku
- Free, no signup
- Browser-local, not uploaded
- No install
- Desktop & mobile
PDF Signature Check: Check if a PDF has digital signatures. Runs locally in your browser—PDFs are never uploaded to our servers.
No signup. Combine with merge, split, and compress tools for a full workflow.
Steps
- Upload or drop your PDF
- Configure options on the page
- Run processing locally
- Download the result
FAQ
- Signup required for PDF Signature Check?
- No. Free with no account.
- Is my PDF uploaded?
- No. Processing stays on your device.
- Password-protected PDFs?
- Use Decrypt PDF first if you know the password.
- Quality loss?
- Most ops preserve content; rasterizing tools note trade-offs on-page.
- Mobile browsers?
- Yes; heavy tasks better on desktop Wi-Fi.
- Copy or download?
- Yes—copy text or download files as supported.