DirectDraw Surface (DDS) to ICO converter

DirectDraw Surface (DDS) pixels are decoded and encoded as ICO by our image engine for dds-to-ico; no OCR is performed.

Converted with Image engine · input deleted within 24 h
Free: 5 conversions a day · 5 MB each
Higher limits →

What changes

DirectDraw Surface (DDS) pixels are decoded and encoded as ICO by our image engine for dds-to-ico; no OCR is performed.
EXIF, color profiles, layers, animation frames, and camera metadata may be stripped unless the destination requires minimal metadata.
Transparency stays for PNG and WebP but is filled with the selected background for JPEG, BMP, PDF, and other opaque targets.
Animated inputs such as GIF are flattened to a still frame unless a server codec explicitly supports animation for that output.
SVG input is rasterized at the requested dimensions or DPI, producing pixels rather than editable vector paths.
Server-only codecs or PDF rendering are used when browsers cannot safely handle the pair.

A real DirectDraw Surface (DDS) → ICO run

We converted our DirectDraw Surface (DDS) sample (281 KB) with Image engine on 2026-10-20. It took 89 ms and produced a 95 KB ICO file, 66% smaller than the input. The engine raised 1 warning, listed below.

Input · sample.dds · 281 KB

288,128 bytes

Output · sample.ico · 95 KB

205 × 256 px, 1 size: 205×256

Width: 205
Height: 256
Encoding: 1 size: 205×256

Image metadata stripped from output.

Options

width: Set the output width in pixels.
height: Set the output height in pixels.
fit: Contain, cover, or fill within the requested dimensions.
quality: Set lossy output quality where the codec supports it.
background: Fill transparency with this color for opaque formats.
stripMetadata: Remove source metadata when writing the output.
dpi: Rasterize SVG or PDF-derived pixels at the requested scale where supported.

Example

input

DirectDraw Surface (DDS) image, 1200 × 800 pixels

output

ICO image resized or re-encoded without OCR text extraction

Do it in code

python

from PIL import Image
img = Image.open("input.dds")
img.save("output.ico")

DirectDraw Surface (DDS) to ICO by API or MCP

The HTTP API and the MCP server run the exact engine this page uses (Image engine); the response carries the same warnings the web converter shows. Check support first with GET /api/v1/pairs?from=dds&to=ico.

curl

curl -X POST https://filetypeconverters.com/api/v1/convert \
  -H "Authorization: Bearer $FTC_API_KEY" \
  -F "file=@input.dds" -F "from=dds" -F "to=ico" \
  -F 'options={"width":0}' \
  --output output.ico

Options this engine accepts for DirectDraw Surface (DDS) → ICO

Key	Applies to	Type	Default
width	Writing ICO	number	0
height	Writing ICO	number	0
fit	Writing ICO	contain · cover · fill	contain
quality	Writing ICO	number	90
background	Writing ICO	string	#ffffff
stripMetadata	Writing ICO	boolean	true

API reference

Related conversions

This converter works today; a tested write-up of what changes for DirectDraw Surface (DDS) → ICO is in progress.