Vn-vni.shx: Tai Font

Once you have downloaded the file, follow these steps to install it into AutoCAD.

If you type te6t expecting "tết" but see squares:

Embedding/packaging: When sharing drawings, include the VN-VNI.shx file in the project archive or switch text to standard fonts to avoid missing glyphs for recipients.

If you receive a drawing with missing fonts and cannot install them, use the STYLE command in AutoCAD:

This is the million-dollar question. The AEC (Architecture, Engineering, Construction) industry is slowly moving toward Unicode SHX fonts or native TrueType support. tai font vn-vni.shx

Arguments for keeping vn-vni.shx:

Arguments for abandoning vn-vni.shx:

The Best Modern Workflow: If you are starting a new project in 2025, consider using vn-unicode.shx (a Unicode-compliant SHX font) or simply use Arial.ttf or Times New Roman.ttf. Ensure "Use Unicode" is checked in your input software (Unikey → Unicode tab). Once you have downloaded the file, follow these

Only use tai font vn-vni.shx if you are strictly maintaining an existing VNI-based office standard or working on a legacy renovation project.

You might ask: "Why not just use Unicode SHX like Arial Unicode MS?"

Because AutoCAD treats Unicode TrueType fonts differently. When you select a TrueType font, AutoCAD renders it as an image object (OLE-like), which can cause: If you receive a drawing with missing fonts

The tai font vn-vni.shx remains the gold standard for BIM collaboration and legacy drawing management because it is lightweight and self-contained within the AutoCAD ecosystem.

Before diving into the Vietnamese aspect, we must understand the container. In AutoCAD, .SHX (Shape File) fonts are not the same as TrueType fonts (.ttf).

The "tai" font specifically belongs to the "Complex" family of SHX fonts. It mimics a technical, hand-lettered style similar to romans.shx or tahoma.shx but has been modified to support the Vietnamese alphabet.