ViewCompanion Pro® is a very powerful application for viewing, printing and converting HPGL, HPGL/2, HP-RTL, TIFF, CALS and other formats. Since most AutoCAD plot files (PLT) is using the HPGL/2 or the HP-RTL format, ViewCompanion can be used to view these files.

Conversion is one of the most important features in ViewCompanion and it can convert to the following formats:
Adobe PDF
Adobe Postscript®
AutoDesk DWF
AutoDesk DXF
CALS Group 4 Raster
Computer Graphics Metafile
Gerber RS-274X
HP-RTL Raster
JPEG Raster
Paintbrush PCX (PCX)
Portable Network Graphics (PNG)
Scalable Vector Graphics (SVG)
TIFF Raster
Windows Bitmap (BMP)
Windows Enhanced Metafile (EMF)
Windows Metafile (WMF)

If you need to distribute drawings, e.g. on the Internet, you can convert your drawings to Autodesk Drawing Web Format (DWF), Scalable Vector Graphics (SVG) or Adobe PDF. All these formats are very popular for distributing drawings.
You can even convert multiple files of different formats to a single multi-page PDF file.
HPGL plotter files can be converted to AutoDesk DXF format, which can be read by almost all CAD application, e.g.: Autodesk AutoCAD and Microstation.
Both batch conversion and printing is included.

With ViewCompanion Pro you can add markups to the loaded file. Supported markup elements include rectangles, lines, dimension lines, area measurements, ellipses, polygons, text, arrows, stamps and images.
You can select one of the predefined stamps or create your own. User defined symbol libraries makes it easy to add frequently used symbols as markups. Hyper links can be added to markup elements, and a hyper link can either open another drawing in ViewCompanion, or open an Internet location using the default browser.
All markup elements are stored in a separate file. The original file will be left unchanged.
The markup elements can optionally be included when the viewed file is printed or converted.
The markup elements can be exported to a DXF file.