Convert psid to psd Online: psid2psd

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

Go to Tom's Editor

PSID

PostScript image is an image format with extension PSID.

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.