ToolBoxPDF Security Checker
Check if a PDF is encrypted and what it allows: print, copy or edit.
Free · No signup · Files stay on your device
or drop a file here
How to use PDF Security Checker
- 1Click the Select button and choose your file, or drag and drop.
- 2Press the PDF Security Checker button.
- 3Download your result.
Your files stay private
Your file is processed on your own device. It is never uploaded to our servers.
Frequently asked questions
Is PDF Security Checker free?
Yes. ToolBox is 100% free. No signup, no watermark, no daily limit.
Are my files uploaded to a server?
No. All work happens inside your browser on your own device. Your files never leave your phone or computer.
Does it work on mobile?
Yes, on Android, iPhone, tablets and desktop. Very large files can be slow on older phones.
What are the limits of PDF Security Checker?
Only settings that can be detected are shown.
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Check whether your PDF pages are in colour or only black, white and grey.