Online Documentation for SQL Manager for SQL server
Setting BLOB options
In this group of options you can determine whether BLOB fields are not to be extracted, extracted as strings, or extracted into a separate file. If the latter is selected, you also need to specify the File name (the *.blo file where the BLOB data are to be stored) and the location of the file on your local machine using the Save as... button.
Check this option if you wish to compress the file containing BLOB data.
Define the desired compression level to be applied for the file: None, Fastest, Default, Best.
Note: If you choose to Extract BLOB fields into file then afterwards the result SQL file can be restored only by using the SQL Manager for SQL Server SQL Script tool.
Click the Next button to proceed to Selecting objects for structure extraction.