The cause of this error is the LT-55 XL software is attempting to use the Prepend PDF function but is missing the PDF TookKit to create the file.
- Download the zipped file from the following address: http://www.pdfhacks.com/pdftk/pdftk-1.41.exe.zip
- Once downloaded, double click on it and you will see a file named “pdftk.exe”
- Extract, copy and paste or drag that file (which ever method you are comfortable with) into the LT-55 XL program folder located at C:\Program Files\Laser Products\LT-55XL\
- Restart the program and you should be able to save as normal.