FAQ
PRF to CG4 Conversion
What are PRF files?
PRF is an image format of PHOTOMOD, a photogrammetric software system of the Russian company Racurs that is used to process aerial and satellite photographs and to produce maps and elevation models. The format is also known as MegaTIFF. It was created for very large images, which can exceed 4 GB and cannot be saved in an ordinary image file. The picture is cut into smaller parts that are stored in separate files, and a small overview picture is added so that the whole image can be shown quickly at a small scale. A short .prf file ties all of the parts together and describes the image. A related variant for elevation data uses the .x-dem extension.
What are CG4 files?
CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.
Can reaConverter convert PRF to CG4?
Yes! reaConverter instantly converts .prf to .cg4 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 PRF 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 PRF to CG4 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 PRF to CG4 online?
If you only need to convert a few PRF files to CG4 format, feel free to try our free online free online PRF to CG4 converter — perfect for small batches with no installation needed!
How can I turn PRF files into CG4 on my computer?
The best way to change PRFs to CG4s 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 PRF to CG4.
How can I automate PRF to CG4 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 PRF files to CG4 using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line prf to cg4 converter for batch processing.
What else can I do with reaConverter?
Convert DICOM filesCrop photoConvert RAW photosConvert PDF filesWatermark photos
Related conversions
Other ways to convert PRF files, and other sources that convert to CG4.
