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TIFF to DDS Converter

Convert TIFF to DDS in your browser. TIFF files usually come from scanners, print and publishing workflows, photo archives and tethered camera capture; DDS is the better fit for game textures and mods. You get an uncompressed 32-bit RGBA DDS texture with a single mip level, or DXT1 or DXT5 block compression if you choose it. Nothing is uploaded.

  • Processed locally
  • No upload, no wait
  • No sign-up
  • No watermark

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TIFF expected · other image formats also work

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How to use TIFF to DDS

  1. 1

    Add your TIFF files: drop them here, choose them, or paste from the clipboard.

  2. 2

    Choose the DDS compression: none for an exact 32-bit texture, DXT1 or DXT5 for smaller GPU-ready files.

  3. 3

    Click Convert. Each file is decoded and encoded in a background thread on this device.

  4. 4

    Download the .dds files one at a time or together as a ZIP.

Why use Aback Images for tiff to dds

Where the DDS goes next

DDS opens in game engines, Visual Studio, Paint.NET, GIMP, NVIDIA and Intel texture tools.

DDS next to TIFF

Neither format compresses much, so the DDS lands close to the TIFF in size.

Written without a lossy pass

The DDS is written uncompressed, so the pixels decoded from the TIFF 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.

TIFF vs DDS

What changes from TIFF to DDS

Encoding: the TIFF uses none, LZW, PackBits, Deflate or JPEG, chosen per file; DDS uses block compression (BC1 to BC7, also called DXT) or uncompressed RGBA, and the download is an uncompressed 32-bit RGBA DDS texture with a single mip level, or DXT1 or DXT5 block compression if you choose it.

Bit depth: 1 to 16 bits per channel, or 32-bit floating point in the TIFF; DDS allows 8 bits per channel for common texture formats, and the DDS written here has 8 bits per channel. 16-bit and floating-point TIFFs are reduced to 8 bits per channel.

Colour: RGB, CMYK, Lab, greyscale or palette, often with an ICC profile in the TIFF; DDS supports RGB(A); normal maps and packed masks store data rather than colour, written here as 8-bit sRGB.

Transparency: the TIFF stores it as an extra sample declared in the ExtraSamples tag; the DDS keeps it as alpha inside the compressed blocks (BC2, BC3, BC7) or a 1-bit cut-out (BC1).

Other images: the TIFF can hold several pages, each in its own image file directory; only the main image is converted.

Metadata: the TIFF can carry EXIF, XMP, IPTC and ICC, all stored as tags; DDS can carry a 128-byte header (plus a DX10 header) describing the pixel format, nothing about the picture, but nothing is copied across.

About TIFF

TIFF is the professional archive and print format. It can hold multiple pages, high bit depths and lossless data, and is common in scanning, publishing and GIS.

A TIFF begins with 'II' or 'MM' for the byte order and the number 42, then an offset to the first image file directory (IFD): a table of tags giving the size, compression, colour model and the location of the strips or tiles of pixels. Each further page is another IFD.

TIFF files usually come from scanners, print and publishing workflows, photo archives and tethered camera capture.

About DDS

DDS is a GPU texture format used by DirectX games. It stores block-compressed textures (DXT/BC) and mipmaps that graphics cards decode directly.

A DDS file starts with 'DDS ' and a 124-byte header giving the size, mipmap count and pixel format: a FourCC such as DXT1 or DXT5, or 'DX10' followed by an extra header naming a DXGI format. The largest mipmap comes first.

When converting TIFF to DDS makes sense

DDS is the better choice for game textures and mods, while TIFF suits printing, scanning and archival masters.

DDS strengths: Loads straight into GPU memory; Mipmaps included. Drawbacks to weigh: Not viewable outside game tools; Lossy block compression.

Limitations

  • Only the first page of a multi-page TIFF is converted; split the file first if you need every page.
  • CMYK TIFFs from print workflows are converted to RGB, which changes how a print shop's colours are described.
  • The DDS has a single mip level, so generate mipmaps in your engine or texture tool if it needs them.
  • Uncompressed DDS textures take 4 bytes per pixel; DXT1 is an eighth of that and DXT5 a quarter, at the cost of lossy 4×4 block compression.

Frequently asked questions

Does converting TIFF to DDS lose quality?

DDS is written uncompressed, so the pixels are stored exactly as decoded. 16-bit and floating-point TIFFs are reduced to 8 bits per channel. Not carried over: any several pages.

Is transparency kept in the DDS?

Yes. TIFF stores it as an extra sample declared in the ExtraSamples tag, and the DDS is written with an alpha channel, so transparent areas stay transparent.

Which apps open DDS files?

Game engines, Visual Studio, Paint.NET, GIMP, NVIDIA and Intel texture tools. 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.