Convert CT to HPG

Bulk CT to HPG conversion with consistent results. Set it up once, process thousands of files with the same quality every time.

Tired of converting CT files one at a time? reaConverter processes entire folders to HPG automatically. Handles large batches reliably without crashes or timeouts.

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How to Convert Multiple CT Files to HPG?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting CT files in under two minutes.

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Install reaConverter

2. Load your CT files

Launch reaConverter and drop in your CT files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your CT files into reaConverter

3. Select HPG as output format

Pick HPG as output format and choose the destination folder where you want to save new .hpg files.

Select HPG as output format

4. Start CT to HPG conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your HPG files in the destination folder you selected.

CT to HPG Converter

reaConverter offers the fastest, simplest solution for converting your CT files into HPG in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting CT files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"Finally, an HPG Converter That Just Works! Last week, we processed 237 HPG blueprints in 18 minutes. Previously, this took half a workday!"
Kevin Nguyen
Kevin Nguyen
Satisfied Customer
"reaConverter handles HPG files flawlessly. I use it to convert plot files to PDF for approvals, and the output is always accurate. The automation through Watch Folders and command-line is a big plus for speeding up our workflow."
Daniel M.
Daniel M.
Mechanical Engineer
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User

CT to HPG Conversion: FAQ

What are CT files?

A CT file represents a bitmap image associated with Iris printers. This brand of large-format color inkjet printers was released in the 1980s and is currently owned by Kodak. Iris printers are used for prepress purposes, delivering a hard copy that shows exactly how the image will look like, and allowing users to check colors and design before mass production printing. They were used particularly in the 1980s and 1990s for reproductions of fine art on different types of media, but in recent years have been superseded by Epson printers.

What are HPG files?

HPG is a vector image format created in a standard programming language called HPGL (Hewlett-Packard graphics language). Other extensions created in this language include PLT, HP2 and PL2. All are called "plotter files" and are created by drawing programs such as AutoCAD to be printed using a device specialized in vector graphics. An HPG file uses a line series of two-letter codes to render an image and can also include parameters.

Can reaConverter convert CT to HPG?

Yes! reaConverter instantly converts .ct to .hpg with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert CT to HPG online?

If you only need to convert a few CT files to HPG format, feel free to try our free online free online CT to HPG converter — perfect for small batches with no installation needed!

How can I turn CT files into HPG on my computer?

The best way to change CTs to HPGs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from CT to HPG.

How can I automate CT to HPG files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert CT files to HPG using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line ct to hpg converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesChange format settingsChange DPIConvert DICOM filesResize pictures

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