error message indicates that this particular PDF file is encrypted. This means
that the creator of the file has placed password protection on the document so
that it cannot be edited or altered in any way. Our software is unable to crack
encryption codes. In this case, the only way to convert this document would be
to obtain the passwords from the creator or get a new PDF file that has not
This article refers to Able2Doc, Able2Doc Professional, Able2Extract and Able2Extract Professional.