Convert HPGL to PLT

Understanding HPGL and PLT file formats

HPGL (Hewlett-Packard Graphics Language) is a vector graphics file format developed by Hewlett-Packard for driving plotters. It uses commands to describe lines, shapes, and text, making it popular in CAD and engineering applications.

PLT files are essentially plotter files, often using the HPGL language. The .plt extension is commonly used for files intended for plotters, especially in CAD workflows. While PLT files are usually HPGL-based, the .plt extension simply denotes a plotter file, which may contain HPGL or other plotter languages.

Why convert HPGL to PLT?

Converting HPGL files to PLT format is often necessary for compatibility with specific plotter hardware or CAD software that recognizes only the .plt extension. The conversion typically involves renaming the file extension, but sometimes minor adjustments to the file content or encoding may be required for full compatibility.

How to convert HPGL to PLT

Since both formats are closely related, the conversion process is straightforward:

1. Manual renaming: If your HPGL file is already compatible, simply rename the file extension from .hpgl to .plt.
2. Using conversion software: For more complex cases, use a dedicated converter to ensure compatibility and correct formatting.

Best software for HPGL to PLT conversion

• Autodesk AutoCAD: Open the HPGL file, then use File → Save As and select the PLT format.
• ViewCompanion Standard: Open your HPGL file, then use File → Save As and choose the PLT extension.
• OnlineConvert.com: Upload your HPGL file and select PLT as the output format for a quick online conversion.

Tips for successful conversion

• Always verify the output PLT file in your target plotter or CAD software.
• If you encounter compatibility issues, try opening the file in a viewer like ViewCompanion to check for errors.
• Keep a backup of your original HPGL file before conversion.