Error when combining secured PDF files

 

Good Morning,

The error below is created in a PDF file after selecting to combine a number of secured PDF documents. The program allows me to create a PS file however, it doesnt save as a PDF file and creates a document containing the following error message:

ERROR: undefined

OFFENDING COMMAND: eexec

STACK:

/quit

-dictionary-

-mark

 What does this error mean?

Thank you to anyone who can assist.

Kind regards, Robert

this error can be caused by trying to 'redistill' protected pdf files.  there is a section in every postscript file generated by printing a pdf which looks like:

%ADOBeginClientInjection: DocumentSetup Start "No Re-Distill"

%% Removing the following [XXXX] lines is illegal, subject > to the Digital Copyright Act of 1998.
mark currentfile eexec ...

if this postscript file is printed as a PDF, it will cause this to be printed to the error log:

Redistilling encrypted PDF is not permitted.
Unrecoverable error: undefined in eexec


workarounds have been found; they're out there if you search....

errors also can look like:

ERROR: undefined
OFFENDING COMMAND: get
STACK:
/quit
-dictionary-
-mark