adc

.adcAdobe Color Document

Adobe · 2004

Developer
Adobe
Category
Documents
MIME Type
application/vnd.adobe.color-document
First Released
2004
Open Format
Yes
File Signature
Not typically defined by a magic byte sequence; identified by file extension and internal structure.
At a Glance
.adc
Adobe Color Document

Adobe Color Document files store custom color palettes for use in Adobe creative software.

Reviewed on June 3, 2026
Compression
Plain text
Transparency
N/A
Editability
Medium
Best for
Color palettes

Key Features

  • Stores custom color palettes and swatches.
  • Supports various color models (RGB, CMYK, HSB).
  • Compatible with major Adobe Creative Suite applications.
  • Facilitates color consistency across projects.

Best For

  • Designers using Adobe Creative Suite.
  • Maintaining brand color consistency.
  • Organizing and reusing specific color sets.
  • Collaborative design projects requiring shared palettes.

Less Ideal For

  • Storing complex vector graphics.
  • Sharing general image files.
  • Non-Adobe software workflows.
  • Large collections of raw image data.

Common Use Cases

  • Saving brand-specific color schemes.
  • Organizing frequently used color combinations for illustration.
  • Sharing color palettes between designers on a team.
  • Maintaining consistent colors for web design mockups.

How to Open It

  1. Open Adobe Photoshop, Illustrator, or InDesign.
  2. Go to the Swatches panel (Window > Swatches).
  3. Click the Swatches panel menu and select 'Load Swatches' or 'Import Swatches'.
  4. Navigate to and select your .adc file.

What is a .adc file?

An ADC file is a color palette or swatch file used by Adobe graphics applications. It stores a collection of colors that designers and artists can easily load and use across different projects. This format helps maintain color consistency, especially when working with multiple Adobe products like Photoshop, Illustrator, and InDesign. By saving custom color sets, users can quickly access their preferred shades and combinations without having to recreate them each time. It's a convenient way to organize and share color schemes for branding, web design, or print projects.

Programs That Open .adc Files

PlatformProgram
WindowsAdobe PhotoshopPaidOfficial
Adobe IllustratorPaidOfficial
Adobe InDesignPaidOfficial
macOSAdobe PhotoshopPaidOfficial
Adobe IllustratorPaidOfficial
Adobe InDesignPaidOfficial

How to Convert .adc Files

FormatMethod
.ASEAdobe Photoshop, Adobe Illustrator
.ACOAdobe Photoshop

Common Problems with .adc Files

⚠️ File not opening in Adobe software.
Ensure you are using a compatible version of Adobe Photoshop, Illustrator, or InDesign and that the Swatches panel is open and loaded correctly.
⚠️ Colors appear different after loading.
Verify color profile settings in your Adobe application and ensure the source ADC file used consistent color space definitions.

Frequently Asked Questions

Can I use ADC files in non-Adobe software?

Generally, no. ADC files are proprietary to Adobe's ecosystem and are not directly supported by most other graphics or design applications.

What's the difference between ADC and ACO files?

ACO files (Adobe Color Swatch) are older Photoshop-specific palette files. ADC is a more modern format that can be used across multiple Adobe applications like Illustrator and InDesign, offering broader compatibility within the Adobe suite.

Technical Details

ADC files are essentially XML-based, making them human-readable to a degree. They define color swatches with their RGB, CMYK, or HSB values, along with optional names. This structure allows for easy parsing and integration into various Adobe applications, ensuring precise color reproduction across different design workflows.

Did You Know?

The ADC format was introduced to provide a more universal color palette solution for the entire Adobe Creative Suite, not just Photoshop.
Because they are XML-based, you can technically open and inspect an ADC file in a text editor, though direct modification is not recommended.

Security Information

ADC files are generally safe as they only contain color data. However, always ensure you are downloading files from trusted sources to avoid any potential malware disguised as a color palette file.

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