Change Owner Password

This command changes the password which is also known as the set permissions password or the master password. Have a look at some examples.

Usage

pdfcpu changeopw [-upw userpw] inFile opwOld opwNew

Common Flags

name	description	values
v(erbose)	turn on logging
vv	verbose logging
q(uiet)	quiet mode
u(nit)	display unit	po(ints),in(ches),cm,mm
c(onf)	config dir	$path, disable
upw	user password

Arguments

name	description	required
inFile	PDF input file	yes
opwOld	current owner password	yes
opwNew	new owner password	yes, must not be empty!

Examples

You have to set the owner password when you encrypt a file and you can change it anytime later with changeopw.

Change the owner password:

$ pdfcpu encrypt -opw opw enc.pdf
writing enc.pdf ...

$ pdfcpu changeopw enc.pdf opw opwNew
writing enc.pdf ...