PSD to DNG Converter
Convert PSD to DNG in your browser. PSD files usually come from Photoshop and apps that save Photoshop documents, such as Affinity Photo, GIMP, Photopea and Krita; DNG is the better fit for raw editing and archiving raw files in an open format. You get a Linear DNG: demosaiced 8-bit RGB with the colour matrices raw editors need. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
PSD expected · other image formats also work
How to use PSD to DNG
- 1
Add your PSD files: drop them here, choose them, or paste from the clipboard.
- 2
Pick the colour that replaces transparent areas, since DNG has none.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .dng files one at a time or together as a ZIP.
Why use Aback Images for psd to dng
Where the DNG goes next
DNG opens in Lightroom, Photoshop Camera Raw, Capture One, darktable, RawTherapee, Affinity Photo and macOS Photos.
DNG next to PSD
The DNG is written uncompressed, so expect it to be several times larger than the PSD, which stores raw or RLE (PackBits) channel data, ZIP in some 16 and 32-bit files.
Written without a lossy pass
The DNG is written uncompressed, so the pixels decoded from the PSD 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.
PSD vs DNG
What changes from PSD to DNG
Encoding: the PSD uses raw or RLE (PackBits) channel data, ZIP in some 16 and 32-bit files; DNG uses lossless (or lossy) JPEG-compressed sensor data, plus optional JPEG previews, and the download is a Linear DNG: demosaiced 8-bit RGB with the colour matrices raw editors need.
Bit depth: 8, 16 or 32 bits per channel in the PSD; DNG allows 8 to 16 bits per channel, and the DNG written here has 8 bits per channel, linearised. 16 and 32-bit documents are reduced to 8 bits per channel.
Colour: RGB, CMYK, Lab, greyscale, indexed or multichannel in the PSD; DNG supports camera RGB plus the colour matrices that map it to XYZ (demosaiced linear RGB in a Linear DNG), written here as 8-bit sRGB.
Transparency: the PSD stores it as transparent layers plus extra alpha channels; the DNG has none, so transparent areas are filled with the colour you choose.
Other images: the PSD can hold layers, masks, adjustment layers and smart objects; only the main image is converted.
Metadata: the PSD can carry XMP, EXIF, IPTC and ICC in image resource blocks; DNG can carry EXIF, XMP and DNG tags for colour matrices, calibration and lens corrections, but nothing is copied across.
About PSD
PSD is Adobe Photoshop's layered working format. It keeps layers, masks and effects, but almost nothing outside Photoshop can display it, so finished designs are exported to PNG or JPG.
A PSD has five sections: a header ('8BPS', channel count, size, depth, colour mode), colour mode data, image resources (thumbnail, ICC, XMP, resolution), layer and mask information, and finally the merged composite image that the Maximize Compatibility option saves.
PSD files usually come from Photoshop and apps that save Photoshop documents, such as Affinity Photo, GIMP, Photopea and Krita.
About DNG
DNG is Adobe's openly documented raw format. Some cameras and phones record it directly, Adobe DNG Converter turns other brands' raw files into it, and a Linear DNG holds already-demosaiced RGB that raw editors treat like any other raw file.
DNG is built on TIFF/EP. The raw image sits in a sub-IFD marked as the main image, with tags for black and white levels, colour matrices and the colour filter pattern; a Linear DNG (PhotometricInterpretation 34892) stores demosaiced RGB instead of a mosaic. Previews are optional, and Adobe DNG Converter can write a medium (1024 px), full-size or no preview.
When converting PSD to DNG makes sense
DNG is the better choice for raw editing and archiving raw files in an open format, while PSD suits editing in Photoshop.
DNG strengths: Open specification read by every raw editor; Lossless compression and optional previews; Recorded directly by Leica, Pentax, DJI drones and phones. Drawbacks to weigh: Large files; No browser or ordinary photo viewer support on every platform.
Limitations
- The merged composite is converted, so hidden layers stay hidden and visible ones are flattened together.
- Files saved with Maximize Compatibility turned off may hold no full-size composite; then only the small embedded thumbnail is available.
- The DNG holds the decoded 8-bit pixels, so it adds no dynamic range or detail beyond the PSD.
- Raw editors apply their own default profile and tone curve to a DNG, so it can look slightly different from the source until you adjust it.
- A Linear DNG has no sensor mosaic, so demosaicing settings in your raw editor have no effect on it.
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Frequently asked questions
Does converting PSD to DNG lose quality?
DNG is written uncompressed, so the pixels are stored exactly as decoded. 16 and 32-bit documents are reduced to 8 bits per channel. Not carried over: any layers.
What happens to transparency when converting PSD to DNG?
PSD stores transparency as transparent layers plus extra alpha channels. DNG has no alpha channel, so transparent pixels are composited onto a solid colour, white unless you pick another. To keep transparency, convert to PNG, WebP or AVIF instead.
Are PSD layers kept?
No. The flattened composite that Photoshop saves inside the file is converted, so the result looks like the PSD with all visible layers merged. Files saved without Maximize Compatibility fall back to the embedded thumbnail.
Can Lightroom edit this DNG like a camera raw file?
It opens with the full raw controls in Lightroom, Photoshop Camera Raw, Capture One and darktable, because it is a valid Linear DNG. It holds the decoded 8-bit pixels, though, so it has no more dynamic range or detail than the image it came from.
Which apps open DNG files?
Lightroom, Photoshop Camera Raw, Capture One, darktable, RawTherapee, Affinity Photo and macOS Photos. 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.