Why DXF text can fail
DWG and DXF can reference SHX, Big Font or styles available only on the authoring computer. Fallback fonts, encoding, MTEXT control codes and exporter behavior can change multilingual characters and engineering symbols.
CAD & ENGINEERING DATA
DWG and DXF font problems: causes and fixes
Why DWG/DXF text becomes question marks or displaced notes, and how to prepare files for more consistent rendering.
Fallback font limits
A Unicode fallback may recover many characters but can change width, line breaks and placement. Lost or incorrectly encoded source text cannot be fully restored by the viewer.
Preparing portable DXF
Reopen the export elsewhere, prefer common Unicode fonts and provide a PDF when exact layout matters.
- Use common Unicode fonts
- Provide a PDF reference
- Check Ø/R/± and multilingual text
- Remove unnecessary control codes
- State DXF version
When to return to source CAD
If text remains corrupted or layout changes significantly, reassign text styles in the source drawing and export again.
FAQ
Frequently asked questions
Will fallback fonts preserve the drawing exactly?
Not necessarily. Text may be readable while layout changes.
Can the browser use local SHX fonts automatically?
No. The viewer uses a safe fallback for text it can decode.
CAD & ENGINEERING DATA