100% Secure & Private
PRF Converter
Need PRF files in a different format? reaConverter batch converts to JPG, PNG, PDF, TIFF and more.
How to Convert .prf Files in Bulk
1. Install reaConverter
2. Select PRF Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless PRF 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.
GIS Toolkit
Do more with your GIS data
Need PRF data as something anyone can open? reaConverter renders imagery and elevation grids into standard images and documents without QGIS or ArcGIS, and works through whole folders in one pass.
- Render imagery, elevation grids and scanned charts to TIFF, PNG, JPG or PDF
- Resize, crop and set DPI on the output in the same run
- Bring tiles, scenes and grids from many sources into one consistent format
- Convert incoming survey and field data automatically with Watch Folders
- Script GIS conversions from the command line for pipelines and scheduled jobs
- Keep cadastral, utility and client data on your PC: nothing is uploaded
User reviews
From those who tried it
Average User Rating:Last updated on July 29, 2026
Questions & Answers
PRF files: Frequently Asked Questions
What are PRF files?
PRF (PHOTOMOD Raster File, also called MegaTIFF) is a multi-file raster in which an XML header points to a folder with the pieces of a large image. The header file with the .prf extension describes the image, and next to it is a folder named after the image, which holds the fragments as TIFF or JPEG 2000 files and an overview image. Each fragment is kept below a chosen size, for example 1 GB, which lets the format hold images larger than 4 GB while every piece remains an ordinary file. The format has two variants: .prf for imagery and .x-dem for elevation data, in which the fragments use the .demtif extension. Pixels may be bytes, 16-bit or 32-bit integers, or 32-bit or 64-bit floating-point numbers. The files can be georeferenced, but the projection is kept in an external .prj file, so it must travel with the rest. To convert a PRF image to graphics, a program reads the header, locates the fragments, and assembles them into one picture, or uses the overview to make a quick small version. Higher bit depths are stretched to 8 bits for PNG or JPEG, while TIFF and GeoTIFF can keep more detail and the coordinates. Supported by PHOTOMOD and OpenOrienteering Mapper.
Can reaConverter open PRF files?
reaConverter fully supports the PRF file format – open, edit, and export PRF files to any other popular file format with ease.
Do I need QGIS or ArcGIS to convert PRF files?
No. reaConverter reads PRF files on its own, so the conversion needs no GIS installation and no licence. It handles whole folders at once, which suits survey archives, tile sets and data deliveries that have to reach people working in other software.
How do I change PRF to another format?
reaConverter is a user-friendly tool for converting PRF files. Once installed on your computer, it allows you to convert all your .prf files at once with just a few clicks. You can even convert PRF files directly from Windows Explorer using the right-click menu — fast and convenient.
Why choose offline conversion with reaConverter?
Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.
Can I convert PRF online?
If you only want to convert a few PRF files, you are welcome to try our free online PRF converter.
How can I turn PRF files on my computer to another format?
The best way to convert PRF 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 PRF.
How can I automate PRF 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 PRF 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 prf converter.
What else can I do with reaConverter?
Convert DICOM imagesCrop photoConvert raster to vectorChange bit depthConvert RAW files
What formats can I convert a PRF file to?
Discover More
Beyond PRF conversion
Convert .prf files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
