SDA is the drawing format from StarOffice/StarDraw, predecessor to ODG.
PGM (Portable Graymap) is a grayscale image format from the Netpbm family.
FreeFileConvert uses tuned encoding for SDA to PGM conversions, preserving clarity while trimming file size. Finished images open instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload SDA files from desktop or tablet, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized PGM results on any device you rely on.
Process up to 5 files sized 1024 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent PGM images with dependable progress tracking.
SDA files use StarOffice binary format for vector drawings.
PGM files support 8 or 16-bit grayscale with ASCII or binary encoding.
Upload your image file in the SDA format from your device.
Select PGM as the output format and click Convert. Adjust optional settings if needed.
Download the converted image file. Each file stays available for up to 5 downloads.