Convert GMT to PGM

The quick and simple way to change your GMT into PGM files is to use a quality piece of software, such as reaConverter.

reaConverter is offline conversion software that supports multiple file formats, including GMT to PGM conversion, along with image editing capabilities.

Download
reaConverter
Convert
GMT to PGM
Online
GMTPGM

How to Convert Multiple GMT Files to PGM?

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. reaConverter is incredibly powerful and boasts an extensive variety of features.

reaConverter logo
Install reaConverter

2. Load your GMT files

Start reaConverter and load all the .gmt files you intend to convert into .pgm. The software supports multiple GMT conversion and processes all files locally on your computer.

Select GMTs from a folder or by drag-and-dropping them directly into the reaConverter window.

Load your GMT files into reaConverter

3. Select PGM as output format

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

Select PGM as output format

4. Start GMT to PGM conversion

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

Screenshot

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

GMT to PGM offline

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

Download Free Trial

Do more with your files

Converting GMT 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 April 23, 2025
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Happy User
"I'd been searching for reliable conversion software forever — reaConverter has everything I need! After installing and watching the tutorial, I had my files converted to the perfect format in minutes. Flawless experience!"
Sanjay Mehta
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
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
"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
Happy User

GMT to PGM Conversion: FAQ

What are GMT files?

The GMT format is associated with Generic Mapping Tools, an open software package consisting of tools for handling geographical and Cartesian data, designed for use via command-line. The most recent version of the GMT format was optimized to support more geometry types and attributes. Such files can be used for producing complex PostScript illustrations of detailed maps, with a wide range of applications in geospatial science, as well as biology, physics, medical research etc.

What are PGM files?

The PGM or Portable Graymap format is part of a package of open source graphics programs called Netpbm. Other Netpbm formats include PPM (Portable Pixmap) and PBM (Portable Bitmap), also known under the collective name of PNM (Portable Anymap). A PGM file includes a grayscale image, can work on a UNIX platform, as well as on Windows or Mac OS X, and can render a scope of up to 255 grayscale colors.

Can reaConverter convert GMT to PGM?

Yes! reaConverter instantly converts .gmt to .pgm 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 GMT to PGM online?

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

How can I turn GMT files into PGM on my computer?

The best way to change GMTs to PGMs 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 GMT to PGM.

How can I automate GMT to PGM 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 GMT files to PGM using the command prompt?

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

What else can I do with reaConverter?

Convert Gerber filesCrop imagesChange format settingsChange picture DPIConvert vector 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