About the HDR file format
HDR File Format (HDR) is a digital image format supported by heic.now conversion workflows.
The guide and converter lists are generated from the live HEIC.now catalog, so every conversion shown here is an available workflow.
Why HDR files are used
HDR File Format files belong to the raster images family and use the .hdr extension.
The most practical format depends on the software, quality, compatibility and file-size requirements of the destination workflow.
What to know about HDR
File structure
HDR has format-specific rules for storing image, document or media data.
Quality
Conversion can change compression, colour, metadata, resolution or editability.
Compatibility
Support for HDR varies between browsers, operating systems and editing applications.
Original files
Keep the original HDR when future editing or maximum retained information matters.
How HDR conversion works
Converting HDR decodes or renders the source and then encodes the result in the selected destination format.
Review the converted file before replacing the source because format-specific features may not transfer.
heic.now creates HDR output from supported source files.
HDR compatibility and software support
Check that the receiving browser, app or service supports HDR before choosing it for delivery.
A JPG or PNG copy is often useful when broad image compatibility is the priority.
HDR and related formats
When should you use HDR?
- Sharing: Create a file the recipient can open without specialist software.
- Publishing: Prepare content for a website, app or content-management system.
- Editing: Move content into a format supported by the next editing application.
- Archiving: Keep the original and create practical access copies for everyday use.
Convert to HDR
Create HDR output.
HDR file format FAQ
What is a HDR file?
HDR File Format (HDR) is a digital image format supported by heic.now conversion workflows.
Can HEIC.now convert HDR files?
heic.now creates HDR output from supported source files.
What changes when HDR is converted?
Converting HDR decodes or renders the source and then encodes the result in the selected destination format.
Should I keep the original HDR file?
Review the converted file before replacing the source because format-specific features may not transfer.