Can I change the font size like UE4 in UE5 especially for high DPI monitor?
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I canât seem to find any equivalent way to do this in UE5 either and find the text far too small to read comfortably. Surely, there has to be a way to increase the font size?
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Hi @Stevenmbiz and @TFX_Mech_Guy. There is a Long thread High resolution display support for editor - Unreal Engine / Feedback for Unreal Engine team - Unreal Engine Forums
This goes into so much detail. I think the last post may be what you are looking for
Update:- Here is my answer for UE5 EA2 and Win 10.
For Windows 10 Unreal 5 EA 2 Source Version
built with Visual Studio 2019 Community version 16.10.. onwards
In file explorer right click on UnrealEditor.exe.
Send Short cut to desktop. Right-click the shortcut
Replace the target line with You need a single quote at beginning of the line and a single quote at the end.
After the end quote put a space and type -enablehighdpi.
âC:\Users\Owner\source\repos\ue50EA\Engine\Binaries\Win64\UnrealEditor.exeâ -enablehighdpi
Click the Apply button to save this, then the OK button.
Now double click the shortcut.
In the Games, section Select the First Person Shooter to give Project name like EnableHighDpi.
Click ok. ALL the Shaders should re-compile >4096.
The Project will open. My GTX card is a 2GB Dedicated so UE5 is already complaining about the lack of GPU Video Memory.
It works on my Ultra HD display, but the graphics card is struggling now all >10,000 shaders have been re-compiled.
If it still does not work try Editor Preferences â General â User Interface â Enable High DPI support. Switch it on (tick), try the project again. Turn off then turn on.
NOTE:- When you import a UE4 project to UE5 this is OFF by default! unless set in a UE4 project
Have you ever used Editor Preferences â Level Editor â Play â Game Viewport Settings
In New View Port Settings-> Drop down Common Settings â TV and set 4K Ultra HD 3480 x 2160 or even 4K Digital Cinema 4096 x 2160.
When you click Play, probably break your graphics card 
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Thanks for taking the time to provide such a detailed reply, thatâs very much appreciated. Iâll take a look at this when I get some time this evening. The solution I used in UE4 was to access and modify the settings found in: Developer Tools > Widget Reflector, but I canât find this setting in UE5. In case this makes any difference, Iâm also using UE for non-games purposes too. Therefore, I havenât used or attempted to modify any specific âgameâ related settings. Iâll take look and let you know if this works for me. Thanks again, much appreciated.
Hi @TFX_Mech_Guy, You asked
The answer is to use the key sequence together of âControl + Shift + Wâ, the first thing when your project blueprint has opened up.
I found this using my skill of searching and reading the source code, but this will never match your artists skill to produce these wonderful projects.
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Just to confirm, we need to know how to increase the size of the text in the UI . I already have the âenable high DPI supportâ option enabled too. This was quite straight forward in UE4 using the settings found in the Widget Reflector which scales the entire interface like in Blender. Blueprints arenât always required for non-games projects so perhaps you are misunderstanding what we are trying to achieve?
I have been inside the engine looking at all the settings and fonts then realised I could set this from the project settings
None are set by default.
Then I was directed to the UE50EA fonts.
In the comments, itâs implied that you change the startup fonts from Robo.Small to Robo.Large, but the names do not seem to correspond
loaded font ââŚ/âŚ/âŚ/Engine/Content/Slate/Fonts/Roboto-Regular.ttfâ (155K)
loaded font ââŚ/âŚ/âŚ/Engine/Content/Slate/Fonts/DroidSansMono.ttfâ (77K)
The full list is
Therefore if you rename Roboto-Medium.ttf to Roboto-Regular.ttf
You increase the size, but itâs just a hack! and you will permanently change the Font to ALL the Unreal processes, but there is no control on the Font size!
Tried but it wonât work, hopefully, it comes as the default feature. So far nearly all other engines and content creators including Blender can do this perfectly.
@Stevenmbiz @TFX_Mech_Guy
I have since having looked at another post.
Problem with high dpi scaling monitors - UE4 AnswerHub (unrealengine.com)
Solved 4K Scaling Win10 Unreal 4.26.0 with Sharp Text and Sharp Demo FPS using alt + p
Before starting double check your settings and make sure these settings are changed first before applying the method.
Right click on the Unreal Engine âShortcutâ> Properties > Compatibility. UnCheck the box for âOverride high DPI scaling behavior.â And yes, uncheck is correct for what we are going to do.
Open Unreal Engine > you may select a new project or current one you have > Click on Edit > Editor Preferences > Make sure âEnable High DPI Supportâ is Checked.
General > Performance > âDisable DPI Based Editor Viewportâ is Checked.
Go ahead and Close Unreal.
Method Setup :
Right Click On Your Desktop and Select Display Settings
Left Click On Your 4K Monitor it should be labeled 1 or 2.
Scroll Down To âScale and layoutâ
Click On The Drop Down Menu For âChange the size of text, apps, and other itemsâ
Select 300% Recommended (My setup works with 300% which is the recommended yours might be different but use your own recommended.
Click on âAdvanced scaling settingsâ
âLet Windows try to fix apps so theyâre not blurryâ Switch This To âOFFâ and close the window.
Open Unreal Engine > Click on âWindowâ at the top left. Click on Developer Tools > Widget Reflector > Application Scale: Change from 1.0 to 0.8 and hit Enter.
Now your Windows apps will be correct size plus Unreal Engine will be correct size with non blurry text and also do alt + p for the FPS demo and that should be sharp as well.
I hope that helps some of yall. I thought something like this would be fixed by now.
-Matt
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answered Dec 28 '20 at 2:09 PM
PingNasty
6 â 1 â 4
Jimbohalo10 12 minutes ago Newest
This excellent. I would add that my Red Eagle monitor says it supports HDR and 144 HZ.
Itâs on an Nvidia GTX 1050 and the Windows profile was set for 60HZ, I donât know how I didnât change this earlier now I can go to with 150% as I am on a 23-inch monitor
The last entry deals with UE and Win 10
I have noticed that the Enable Editor Support for HDR Monitors.
I forgot to enable 144hz Refrsh in Windows 10, which I have done now.
@Stevenmbiz @TFX_Mech_Guy _Mech_Guy
Finally I tried on the 4K UHD at 300%, but gone back to my 23 inch 4K with 150 %.
I agree it would be better if UE5 was -enablehighdpi all the time and worked, but we just have to try different ways
I came here with the same problem and this solved it for me. Thanks Jim!
I recently made a simple UE4/UE5 plugin to change font size of the UE Editor.
Unlike Widget Reflector, the plugin saves the desired UI scale between sessions.
Hello, I have created a plugin to save the ApplicationScale of WidgetReflector. I am sure it will help you.
KTA552/UE-EditorUIScaleCustomization