PLT Optimization

reaConverter lets you batch optimize PLT (HPGL) files in just a few clicks, dramatically improving plotter and laser cutter performance.

Optimize PLT Files to Reduce Plotter Skipping

PLT ("plotter") files are vector images used in CAD software like AutoCAD, designed for plotters, engraving machines, and cutting devices. Unlike standard printers, these machines follow precise line sequences—but inefficient HPGL code can lead to excessive skipping, slowing down production and reducing output quality.

With PLT optimization, reaConverter reorders line commands to minimize unnecessary movements, ensuring:

Faster processing – Less skipping means quicker plotter/cutter operation.
Improved precision – Smoother line transitions enhance engraving & cutting quality.
Batch processing – Optimize multiple PLT files at once with no manual effort.

Perfect for architects, engineers, and designers, this optimization ensures your blueprints, schematics, and project designs are processed at maximum efficiency.

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1. Add Files

Drag and drop PLT, CAD files, PDF, vector or any of 700+ supported formats. reaConverter processes them all, ensuring high-quality output for plotters and cutters.

Add files individually or by folder. Filter batches precisely using file masks, size ranges, and extensions with "Advanced file select" dialog.

2. Optimize PLT Files

Go to the Menu button and then choose Saving settings → Format saving settings → PLT or click the cogwheel (⚙) icon next to the format selection box to access advanced settings.

When saving to PLT format (HPGL), reaConverter offers several advanced features to help you fine-tune output for plotters, engravers, and cutting devices:

Create HPGL or HPGL/2 File
Choose between generating a standard HPGL file or the enhanced HPGL/2 version. Use HPGL/2 if your plotting device supports it and you need improved precision or support for additional features like color or advanced line control.
Create an Optimized PLT
Reorganizes the plotting path to reduce skipping between segments and streamline the output sequence. Ideal for speeding up production on plotters or laser cutters by minimizing tool movement and shortening job time.
PLT Image Rotation
Rotate the PLT image to match your desired orientation. Useful when aligning with specific plotter paper feed directions or fitting designs more efficiently.
Set Pen Width
Define a specific pen width (in plotter units) for all lines in the output. Ensures uniform stroke thickness, especially when your hardware doesn't support dynamic width changes.
Remove Duplicated Lines
Automatically detects and removes overlapping line paths to avoid redundant plotting. Prevents double-plotting, saves material and time, and improves final output quality.
Save Image Size
Preserves the original size of the image during the conversion process. Important for technical accuracy in blueprints, floor plans, or cutting layouts where scale must remain unchanged.

3. Save the Result

Choose the destination folder where you want your optimized PLT files to be saved.

Then, simply click the Convert button — reaConverter will process the files using your selected settings and deliver optimized results in seconds.

Convert PLT on Your PC

Need high-quality PLT files? With reaConverter, you can quickly convert images to optimized PLT format — completely offline for maximum privacy and security.

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Optimize PLT with command-line tool

You can also convert to plt using command-line interface, either manually or through automated scripts. reaConverter Pro includes a command-line tool called cons_rcp.exe — an advanced feature designed for professional use, available exclusively in the Pro edition.

PLT conversion example:

cons_rcp.exe -s "C:\Path_to\input_file.pdf" -o "C:\Path_to\output_file.plt" -plt_optimized 1

Manual

-plt_hpgl2
  where value = 1 if you want to create HPGL/2 PLT files and = 0 to create HPGL PLT
-plt_optimized
  where value = 1 if you want to create optimized PLT files and = 0 otherwise
-plt_rotate
  where value = 0 - Do not rotate, 1 - Rotate 90 degrees right, 2 - Rotate 90 degrees left
-plt_pw
  where value = pen width in plotter units (1 mm = 40 plotter units)
-plt_remove_dup
  where value = 1 if you want to remove duplicated lines and = 0 otherwise
-plt_save_size
  where value = 1 if you want to save size of PLT image and = 0 otherwise

You are welcome to contact our technical support when you have any questions about reaConverter.