FAQ
GMT to PGM Conversion
What are GMT files?
GMT is a text format for map vector data used by the Generic Mapping Tools, a widely used open-source collection of programs for drawing scientific maps and graphs, developed by Paul Wessel and Walter Smith. In its simplest form, a file is just a list of coordinates of points or lines, with a line starting with the character > marking the start of each new line. In the newer form, the file also carries a header written in comments, which names the type of shapes, the extent, the coordinate system, and the attributes of each feature, such as a name or a depth, so that points, lines, or polygons with their attributes can be kept in one file without a separate table. This version was introduced to improve exchange with other GIS programs.
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 GMT files directly from Windows Explorer using the right-click menu — fast and convenient.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For GMT to PGM it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.
Why choose offline conversion with reaConverter?
reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.
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 vector filesChange image DPIConvert DICOM filesCrop pictureConvert Gerber files
Related conversions
Other ways to convert GMT files, and other sources that convert to PGM.
