Conversion can change data
A DWG-to-DXF conversion does not automatically damage a drawing, but exact preservation cannot be guaranteed in every case. Results depend on versions, CAD objects, fonts, xrefs, proxies and the converter.
CAD & ENGINEERING DATA
Does converting DWG to DXF lose data?
What normally survives conversion, what can change and a practical post-conversion checklist.
Data that usually transfers well
Standard 2D lines, polylines, arcs, circles, layers and many blocks often transfer reliably. Entity counts, coordinates, units, scale and closed profiles still require verification.
Higher-risk content
SHX/Big Fonts, complex MTEXT, dynamic blocks, proxy objects, xrefs, images, custom objects and some hatches may change or disappear. Exporting to a much older DXF version can force object decomposition.
- Fonts and text styles
- Proxy and custom objects
- Xrefs and reference images
- Dynamic blocks and attributes
- Hatches, layouts and viewports
- Insertion units and scale
Post-conversion checklist
Open the DXF in a different application, use zoom extents and compare it against the source DWG or released PDF.
- Correct revision and units
- Matching overall size
- Complete layers, blocks and profiles
- Readable text and Ø/R/± symbols
- No duplicate or broken profiles
- Governing document identified
How VietTech CAD Viewer handles DWG
The Beta creates temporary DXF data on the device for display. It does not modify the source DWG or create a downloadable production DXF. Export an official DXF from the source CAD system when it will drive manufacturing.
FAQ
Frequently asked questions
Does conversion change the source DWG?
Not when exporting to a new file. Keep the source and never overwrite it.
Is standard 2D geometry usually preserved?
Often yes, but profiles, units and scale still need checking.
Can I download the temporary DXF from CAD Viewer?
No. It exists only in the browser for displaying the DWG.
CAD & ENGINEERING DATA