What are the key security features of PDF files?
An example of an AI chatbot conversation about PDF security features.
What are the key security features of PDF files?
PDF files offer several security features, including password protection, encryption, digital signatures, and permissions settings.
How does password protection work in PDFs?
Password protection restricts access to the PDF. Users must enter the correct password to open or edit the document.
What types of encryption can be used?
PDFs can use 40-bit or 128-bit encryption, with 128-bit being more secure and commonly used for sensitive documents.
Can I add a digital signature to a PDF?
Yes, you can add a digital signature to a PDF, which verifies the identity of the signer and ensures document integrity.
What are permissions settings in PDFs?
Permissions settings control what users can do with the PDF, such as printing, copying text, or editing the document.
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