For best results along portability and flexibility being a 32 bit GIMP, you need the 32 bit gmic_gimp.Also, GIMP 2.10.2 is a bit buggy, and we suggest you use GIMP 2.10.4, which is well adjusted. Thus you should check beforehand installing GIMP. The problem might arrive due to the directory where GIMP is installed. Download GIMP DDS Pluginsĭownload for 32 bit – Here How to Install GIMP DDS Plugins

Extensively used for image format conversion, free-form image creation & editing, image retouching and ample specialized actions. GNU Image Manipulation Program (GIMP) is a free, open-source, cross-platform raster image & graphics editor. Compliant with DirectX 10 block compressed (BC) formats.Non-power-of-two image loading and saving support with automatic mipmap generation support.Save cube maps and volume maps with automatic mipmap generation support.Load cube map faces and volume map slices into separate layers.Optional automatic mipmap generation when saving.Load/save DDS files, optionally using DirectX texture compression (DXT).Load cube map faces and volume map slices into separate layers. Optional automatic mipmap generation when saving. Load/save DDS files, optionally using DirectX texture compression (DXT). It allows you to load and save images in the Direct Draw Surface (DDS) format.

Thus, DDS plugins are used to get the task done. GIMP is unable to create/convert/open files in DDS format by default. DDS is a raster image extended onto DirectDraw Surface format, developed by Microsoft to store textures and environments in DDS format.

Checkout the full article for DDS Plugins with its features. Here is GIMP DDS Plugins to download and how to install it in your portable GIMP.

Install dds plugin photoshop portable