HDR to EPS Converter
Convert HDR to EPS in your browser. HDR files usually come from HDRI environment maps, 360° panoramas and lighting simulation; EPS is the better fit for print artwork and logos for professional layout software. You get an EPS that wraps the pixels as a PostScript image; it contains no vector paths. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
HDR expected · other image formats also work
How to use HDR to EPS
- 1
Add your HDR files: drop them here, choose them, or paste from the clipboard.
- 2
There is nothing to tune: the EPS is written uncompressed. Resizing and rotating are under More options if you need them.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .eps files one at a time or together as a ZIP.
Why use Aback Images for hdr to eps
Where the EPS goes next
EPS opens in Illustrator, CorelDRAW, InDesign, Affinity Designer, Ghostscript, and Inkscape through Ghostscript.
EPS next to HDR
The EPS is written uncompressed, so expect it to be several times larger than the HDR, which stores run-length encoded RGBE scanlines.
Written without a lossy pass
The EPS is written uncompressed, so the pixels decoded from the HDR arrive unchanged, apart from precision beyond 8 bits per channel.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
HDR vs EPS
What changes from HDR to EPS
Encoding: the HDR uses run-length encoded RGBE scanlines; EPS uses PostScript program text, with an optional binary TIFF preview or an EPSI hex preview, and the download is an EPS that wraps the pixels as a PostScript image; it contains no vector paths.
Bit depth: an 8-bit mantissa per channel sharing an 8-bit exponent (RGBE), 32 bits per pixel in the HDR; EPS allows resolution-independent artwork, with previews usually 8-bit, and the EPS written here has 8 bits per channel. The high dynamic range is mapped to 8 bits per channel, and values above white clip.
Colour: linear RGB (or XYZ in the XYZE variant) in the HDR; EPS supports CMYK, RGB and spot colours, written here as 8-bit sRGB.
Metadata: the HDR can carry a text header with FORMAT, EXPOSURE and optional comments; EPS can carry DSC comments such as %%BoundingBox, %%Creator and %%Title, but nothing is copied across.
About HDR
Radiance .hdr stores high dynamic range light values, widely used for 3D environment maps and HDRI lighting.
A Radiance file starts with '#?RADIANCE' (or '#?RGBE'), text lines such as FORMAT=32-bit_rle_rgbe and EXPOSURE, a blank line, a resolution line like '-Y 2048 +X 4096', then the scanlines.
HDR files usually come from HDRI environment maps, 360° panoramas and lighting simulation.
About EPS
EPS is a PostScript drawing packaged for placing inside other documents. It was the exchange format of print and logo design for decades; most EPS files also carry a raster preview so layout software can show them.
An EPS is a PostScript program with DSC comments ('%!PS-Adobe-3.0 EPSF-3.0', %%BoundingBox). Files from Illustrator, Photoshop and CorelDRAW usually start with a 30-byte binary header (C5 D0 D3 C6) that points to a TIFF preview; others carry an EPSI hex preview between %%BeginPreview and %%EndPreview.
When converting HDR to EPS makes sense
EPS is the better choice for print artwork and logos for professional layout software, while HDR suits 3D lighting and environment maps.
EPS strengths: Vector artwork that prints at any size; Accepted by print shops and older layout software; CMYK and spot colours. Drawbacks to weigh: Browsers and phones cannot display it; Needs a PostScript interpreter to render the vector data; Superseded by PDF and SVG.
Limitations
- Light values above 1.0 are clipped rather than tone-mapped, so the sun and bright sky turn flat white.
- Environment maps are 2:1 equirectangular panoramas, so the picture looks stretched near the top and bottom, as it should.
- Files in the XYZE variant cannot be read here; RGBE files, the common kind, can.
- The EPS holds pixels inside a PostScript wrapper, so it prints at the resolution of your image and will not get sharper when enlarged.
- Transparency is flattened onto the background colour, because the EPS image has no alpha channel.
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Frequently asked questions
Does converting HDR to EPS lose quality?
EPS is written uncompressed, so the pixels are stored exactly as decoded. The high dynamic range is mapped to 8 bits per channel, and values above white clip.
Is the EPS a vector file?
No. The EPS wraps the pixels as a PostScript image, which is what layout and print software need to place it, but it has no vector paths, so it does not get sharper when enlarged. For real vectors, trace the image to SVG first.
Which apps open EPS files?
Illustrator, CorelDRAW, InDesign, Affinity Designer, Ghostscript, and Inkscape through Ghostscript. It does not open in web browsers.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.