Convert CPT to GBR

CPT to GBR made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Got a folder full of CPT files? reaConverter batch converts them to GBR in minutes, not hours. Local processing means instant results, even with thousands of files.

Download
reaConverter
Convert
CPT to GBR
Online
CPTGBR

How to Convert Multiple CPT Images to GBR?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. reaConverter also includes editing tools: resize, crop, rotate, and more.

reaConverter logo
Install reaConverter

2. Load your CPT files

Start reaConverter and add your .cpt files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your CPT files into reaConverter

3. Select GBR as output format

Select GBR from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select GBR as output format

4. Start CPT to GBR conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your GBR output.

CPT to GBR Converter

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

Download Free Trial

Do more with your images

Converting CPT images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

Image editing tools
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"Flawless Gerber Conversions – Saved Us Countless Hours! Processes 50+ GBR files at once (drills, copper layers, silkscreens), auto-renames outputs (e.g., ProjectX_top_copper.pdf)"
Arthur Hughes
Arthur Hughes
Satisfied Customer
"As a PCB engineer, I rely on reaConverter to batch convert GBR files to PDF and PNG for client reports. It preserves layer accuracy perfectly, and the command-line automation saves me hours per project. Finally, a tool that handles Gerber files without glitches!"
Michael Chen
Michael Chen
Senior PCB Designer
"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
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User

CPT to GBR Conversion: FAQ

What are CPT files?

The CPT file extension is associated with Corel PHOTO-PAINT, a raster graphics editor developed by Corel. CPT files use Corel PHOTO-PAINT's own bitmap format to store edited digital photos. In other words, they are graphic files with distinct layers, alpha channels and transparency, all of which allow for future image editing. CPT is very similar to the TIFF format in terms of image quality and size, but the latter tends to be more popular and easier to handle using regular image viewers.

What are GBR files?

GBR is part of the Gerber group of formats — a set of standardized extensions used in the printed circuit board (PCB) industry. Gerber files include 2-D representations of various PCB images, such as copper layers, solder mask etc. They can also describe the electrical connections on such boards, or drilling and milling info associated with them. Similar formats include GBS, CMP and SOL.

Can reaConverter convert CPT to GBR?

Yes! reaConverter instantly converts .cpt to .gbr 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert CPT to GBR online?

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

How can I turn CPT files into GBR on my computer?

The best way to change CPTs to GBRs 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 CPT to GBR.

How can I automate CPT to GBR 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 CPT files to GBR using the command prompt?

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

What else can I do with reaConverter?

Change format settingsChange DPIConvert vector filesChange color spaceConvert PDF files

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software