O&K Print Watch does not save the images of printed documents.

To save space and make working with the database more productive, O&K Print Watch saves only images it can show. The distribution package of O&K Print Watch includes the version of O&K Printer Viewer that can show print jobs in the formats:

There are a lot of factors influencing the format of print job data. You can use the following methods to force the use of NT EMF:

See also:

How to enable to store printed job shadow copy in O&K Print Watch.
How to store printed documents images on the hard drive instead SQL database.