FAQ
THF to CAL Conversion
What are THF files?
THF is the main file of a package in EDIGEO, the French standard for exchanging digital geographic data, and it is best known from the French cadastral plan, the digital map of land parcels that the tax administration makes available for every commune. A single EDIGEO delivery is made of several files with the same base name, and the THF file is the one that stands at the top: it describes the transfer as a whole and tells which other files belong to it. By itself it holds no map, and the parcels, buildings, and boundaries are in the other files of the package. Such packages are published openly for the whole of France and are widely used to produce local maps and to import cadastral data into other systems.
What are CAL files?
A CAL image file represents a monochrome bitmap image that uses the CALS raster image standard for storing graphics data. This standard was created in the 1980s by the US Department of Defence as a compressed interchangeable image format. CAL and CALS are extensions used for similar purposes.
Can reaConverter convert THF to CAL?
Yes! reaConverter instantly converts .thf to .cal 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.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For THF to CAL 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 THF to CAL online?
If you only need to convert a few THF files to CAL format, feel free to try our free online free online THF to CAL converter — perfect for small batches with no installation needed!
How can I turn THF files into CAL on my computer?
The best way to change THFs to CALs 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 THF to CAL.
How can I automate THF to CAL 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 THF files to CAL using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line thf to cal converter for batch processing.
What else can I do with reaConverter?
Convert microscopy filesResize picturesConvert RAW formatsConvert PDFAdd watermark on photo
Related conversions
Other ways to convert THF files, and other sources that convert to CAL.
