Convert sld to psd Online: sld2psd

You can use Tom's Editor to easily convert images from
AutoCAD slide file .SLD to Adobe Photoshop .PSD.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

SLD

AutoCAD slide file is an image format with extension SLD.

PSD

PSD is in internal image format of Adobe Photoshop. It can store all the features offered by Photoshop, like layers and paths. Images can be compressed or not.