In order to export LizardTech MrSID images (.sid) to common JPEG picture format (.jpg, .jpeg) you have to use some of the specialized converters, such as Total GIS Convert that allows users to perform exactly this conversion. Used for exporting map data.
Convert LizardTech MrSID image file format to JPEG bitmap image format.
We found 2 software records in the database related to .sid to .jpg file format conversion.
Microsoft Windows software - convert sid to jpg on Windows
A dedicated converter for SID format
Convert from sid file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned sid to jpg. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A converter that is able to transform various GIS file formats