You can create PDF file using "export" command or "publish" command. Another method is printing PDF by PDF virtual printer.
The font file that displays the character doesn't exist in GstarCAD. You can change it into other font file or copy this font file to font library.
Use hopen command or use GstarCAD backup file manager to open, the dwh file will be saved as dwg file after you open it. See related link.
.dwg is the default drawing format of GstarCAD; at present, GstarCAD is compatible with ever version of .dwg and .dxf files from 2.5 to 2010, it is means GstarCAD is compatible from AutoCAD 2.5 to AutoCAD 2012. If you are using AutoCAD 2013, you have to exchange the file with GstarCAD and save it as earlier .dwg version before 2010. By the way, GstarCAD will be compatible with AutoCAD 2013 soon.
You can create PDF file using "export" command. Another method is using PDF virtual printer.
Use the function of GstarCAD - "Start>Export OCF file".
Trial Version has the same function as Authorized Version. The only difference is the trial using term. You have 30 days' full functional evaluation on our CAD software. After that, can not save the file.
You can set password when you save a file in GstarCAD. The method is following: In "Save Drawing As" dialog box, press "Tools" button then choose "security options". In "security options" dialog you can set password for your file.
GstarCAD can export: DWG, DWF, PDF, WMF, BMP, EMF, SVG and OCF file formats. You can also open and save DXF, JPEG, TIF, PNG, GIF file formats.
Same to other CAD software, GstarCAD can switch drawings by shortcut of Crl+Tab. GstarCAD has a more convenient mode: file tab bar. The names of drawings are displayed on the tabs; you can switch quickly and precisely by click the file names.
Hatch patterns of GstarCAD are saved in GstarCAD Professional\Patterns. You can directly paste the edited or copied hatch definitions into icad.pat files, or save one or more hatch patterns as independent *.pat files and put it under the "Patterns" catalog. It is suggested not to paste whole acad.pat into icad.pat. The new version CAD software has stored plenty of hatch patterns. Please pay attention when you save a file as independent *.pat file, the name of the file should be the same as the hatch name defined in the file.
GstarCAD's native file format is DWG, so when you open an existing Autodesk AutoCAD file (2.5 to 2010), there's no file conversion and no data loss. GstarCAD also provides a full compatibility with AutoCAD command line,menu (.mnu) and script (.scr) files, hatches, fonts, complex linetypes, multiline text, lightweight, polyline, draw commands, audit & recover as well as AutoLISP and ADS. That means you can get to work immediately by using the AutoCAD files, commands and applications you rely on.
Copy font files to corresponding catalog GstarCAD Professional\Fonts. Please don't copy the whole font file of other software to GstarCAD randomly; it is better only to copy useful font files.