Visit the official ACDSee Knowledge Base if a specific language pack is required. Why the Language Change Matters

Knowing these details can help me give you more specific instructions if the standard methods don't work!

Within the Options dialog box, look at the sidebar on the left. Click on General .

Your Windows display language is overriding ACDSee. Go to Windows Settings > Time & Language > Language & Region. Move your desired language to the top of the list. Then reapply ACDSee’s internal language setting.

If you can see the language option but cannot click it, your license type is restricting your access. How to Resolve:

To change the interface language in ACDSee software, you generally need to download and install a specific language version or a language pack, as there is often no simple toggle within the standard menu for some versions.

If the standard menus don't show a language option, users often turn to the Windows Registry , though this is not officially supported and can be risky. Registry Checks