GP4 Converter

Fast GP4 conversion for Windows. reaConverter processes large batches reliably without crashes or timeouts.

Download

Convert GP4 on your PC

For quick and effortless GP4 file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

Download reaConverter

Do more with your files

Converting GP4 files for use in a larger project? 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

User Reviews

Average User Rating:
Last updated on November 26, 2025

"Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly."

Mark Jones

Happy User

"reaConverter's automation tools have completely changed how I manage my projects. I often work with large batches of illustrations and used to spend hours converting and organizing them. Now, with Watch Folders, I just set the rules once and everything is handled automatically, exactly how I need it. This is pro-level automation made simple."

Chloe M.

Freelance Illustrator

"Before reaConverter, I was the ‘File Conversion Guy’ at work — a title I never asked for and definitely didn’t want. Then I found the Watch Folders feature, and suddenly I was free! Now, files convert themselves while I sip coffee and pretend I'm still working hard. My coworkers think I'm a wizard. Thanks reaConverter, for saving my sanity and boosting my fake productivity!"

Ben H.

Overwhelmed Office Hero

"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."

Roger Cook

Happy User

"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"

Henry R.

Happy User

"We receive artwork in all kinds of formats from clients. reaConverter takes care of converting them all to print-ready specs automatically using Watch Folders. It reduces errors, saves us time, and has improved our turnaround time with customers. Incredibly powerful software."

Michael D.

Print Shop Owner

GP4 files: Frequently Asked Questions

Can reaConverter open GP4 files?

reaConverter fully supports the GP4 file format – open, edit, and export GP4 files to any other popular file format with ease.

How do I change GP4 to another format?

reaConverter is a user-friendly tool for converting GP4 files. Once installed on your computer, it allows you to convert all your .gp4 files at once with just a few clicks. You can even convert gp4 images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert GP4 online?

If you only want to convert a few GP4 files, you are welcome to try our free online GP4 converter.

How can I turn GP4 files on my computer to another format?

The best way to convert GP4 files on your PC is to get 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 GP4.

How can I automate GP4 files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert GP4 files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line gp4 converter.

What else can I do with reaConverter?

Copy IPTC data Convert DICOM images Image resizer Convert Gerber images Crop pictures