The SDG format is associated with StarOffice, a software pack released in mid-1980s and including a document reader, a macro recorder and a software development kit, among others. StarOffice was discontinued in 2011 and a part of its source code can be found in the currently available OpenOffice. SDG represents a StarOffice Gallery format and is now an uncommon file, probably difficult to open using regular image viewers.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple SDG files as once.
JPEG JPG PNG GIF TIFF TIF BMP ICO EMF WMF AI PDF EPS PS EPI WEBP WEBPLL JP2 PCX TGA DWG DWF DXF DGN WMZ CGM DRW SHP GBR PCT MIF PLT PCL SVG WPG CIN DCX DIS HRU MTV PRC RAD PIC RLA QRT SGI XBM XPM SWF CAL FAX FITS PSD PGM JXR BPG APNG DDS SVGZ CG4 FLIF AVIF QOI
Advanced users can convert SDG files via command-line interface in manual or automated mode. You are welcome to contact our technical support when you have any questions about reaConverter.