What is it?
LEADTOOLS, is a family of raster, document, medical, multimedia and vector imaging toolkits that allow programmers and developers to incorporate digital imaging technologies into applications that they are creating.
Description of lttwn12n.dll from LEAD Technologies
“LEADTOOLS Imaging Pro includes the tools developers need to add powerful imaging technology to applications. With more than 20 years of imaging development expertise, LEADTOOLS Imaging Pro includes display functions and controls, image compression, image processing, TWAIN and WIA scanning, color conversion, 200+ display effects, 150+ image formats, printing, database imaging, imaging common dialogs and screen capture.”