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Why convert HDR to EPUB?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the HDR format
HDR — Radiance RGBE High Dynamic Range
HDR (Radiance .hdr) is a high dynamic range image format developed for the Radiance rendering system. It stores luminance information far beyond standard 8-bit images using a shared-exponent encoding, making it the standard for HDR environment maps in 3D rendering.
Common uses
- 3D rendering environment maps (IBL)
- HDR panorama photography storage
- VFX and CGI lighting reference images
- Tone mapping source images
About the EPUB format
EPUB — Electronic Publication
EPUB is the international open standard for digital books and publications, maintained by the W3C. It is supported by virtually all e-readers (except Kindle) and provides reflowable text that adapts to any screen size, along with support for embedded fonts, images, and multimedia.
Common uses
- Digital books and novels
- Publishers distributing ebooks
- Academic and educational ebook publishing
- Distributing reports and long-form content
Related conversions
Other conversions available for HDR and EPUB files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.