Some users report success using Zamzar for SmartDraw files, though it depends on the version of the file. For Surveying or Unknown SDR Files
Programs like FileMagic or specialized CAD viewers can often "Print to PDF" or "Save As" common image formats. Important: SDR vs. SDR Video convert sdr file to jpg online fixed
: This tool allows you to upload an SDR file and convert it to a PDF first, which can then be easily saved as a JPG using standard image tools. Some users report success using Zamzar for SmartDraw