A document-open password controls who can open the file
The document-open password is the credential a reader asks for before displaying the encrypted PDF. Adobe also refers to it as the user password.
This is the password type most people mean when they say they want to password-protect a PDF before sharing it.
A permissions password controls security settings
A permissions password, also called an owner or master password, is used with restrictions such as whether a reader may print, edit or copy PDF content.
Adobe treats those restrictions separately from the password that is required simply to open the document.
1into1 currently uses one password for both roles
The current Protect PDF implementation passes the same user-entered password as both the user password and owner password while applying 128-bit encryption.
The interface does not currently expose separate permission switches or a second independent owner-password field.
Do not assume permissions restrictions are enforced
Because 1into1 does not expose granular permission settings, do not describe the current tool as separately disabling printing, copying or editing.
When a workflow specifically requires those permission controls, use a PDF security tool that lets you configure them explicitly.
Password protection and redaction solve different problems
Encryption controls access to the file. It does not remove confidential text that becomes visible after an authorized recipient opens the document.
Use permanent redaction to remove visible sensitive information and sanitization to remove broader hidden data when those are part of the sharing requirement.
Official sources reviewed
- Adobe PDF Services — Protect PDFAdobe documents user passwords, owner passwords, AES encryption and optional granular PDF permissions.
- Adobe Acrobat — Password security policiesAdobe documents document-open and permissions-password settings as separate security concepts.