Hey there, I’ve run into this exact problem with Photoshop CS6 Extended on Windows high-res displays before—totally annoying when buttons, fonts, and even canvas previews feel way too tiny to work with. Let’s walk through the most reliable fixes to get everything scaled properly:

1. Enable Photoshop’s Built-in UI Scaling #

CS6 has a often-overlooked UI scaling setting that’s perfect for matching your screen’s DPI. Here’s how to use it:

• Open Photoshop, then head to Edit > Preferences > Interface (or press Ctrl+K to jump straight to Preferences, then switch to the Interface tab)
• Look for the UI Scaling section—you’ll see percentage options like 100%, 125%, or 150% (depending on your screen’s capabilities)
• Pick the percentage that matches your Windows display scaling (e.g., if Windows is set to 125%, select 125% here)
• Hit OK, then restart Photoshop. You should see an immediate difference in how the UI elements and fonts appear.

2. Adjust Windows High DPI Compatibility Settings #

Since CS6 is an older program, Windows might not automatically apply the right scaling for it. Overriding this manually usually fixes the issue:

• First, close Photoshop completely (make sure it’s not running in the background either)
• Find the Photoshop executable: it’s typically in C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)\Photoshop.exe (use the 32-bit folder if you installed that version)
• Right-click Photoshop.exe, select Properties
• Switch to the Compatibility tab
• Check the box labeled Override high DPI scaling behavior. Scaling performed by:
• From the dropdown, choose System (Enhanced)
• Click Apply, then OK. Launch Photoshop again—this forces Windows to scale the app to match your screen’s DPI.

3. Double-Check Your Windows Display Scaling #

Sometimes the root issue is just Windows not being set to the right scale in the first place:

• Right-click your desktop, select Display settings
• Under Scale and layout, make sure the Change the size of text, apps, and other items is set to a value that fits your screen (common options are 100%, 125%, 150%)
• If you tweak this setting, you’ll need to sign out and back in for it to take effect. Then open Photoshop again to see if the scaling matches up.

4. Advanced Registry Tweak (If All Else Fails) #

This is a more advanced fix, so only try it if the above steps don’t work. Always back up your registry before making changes:

• Press Win+R, type regedit, and hit Enter to open the Registry Editor
• Navigate to HKEY_CURRENT_USER\Software\Adobe\Photoshop\13.0 (13.0 is the version number for CS6)
• Right-click in the right pane, choose New > DWORD (32-bit) Value
• Name the new value UI Scale
• Double-click it, set the Base to Decimal, and enter a number matching your desired scale (100 for 100%, 125 for 125%, etc.)
• Close the Registry Editor and restart Photoshop.

I’ve used the first two fixes together to resolve this issue multiple times for CS6 on Windows 10 and 11—they should cover most cases.

内容的提问来源于stack exchange，提问作者Brenda Carey