Fix Unsupported Color Format Error When Scanning in Acrobat on Mac
Question details
The user encounters an 'unsupported color format' error when attempting to scan a document using Adobe Acrobat on a Mac computer.

- Product
- Adobe Acrobat
- Device & OS
- macOS
- Scenario
- Scanning a physical document into a PDF file via a connected scanner using Adobe Acrobat.
- Observed behavior
- Acrobat halts the scan and displays the error message 'The selected color format is not supported'.
Ensure your scanner is powered on and properly connected to your Mac. Open the built-in macOS 'Image Capture' application to verify that the scanner hardware functions correctly outside of Acrobat.
Update Acrobat, macOS, and Scanner Drivers
Software and driver incompatibilities are the most common cause of color format errors during scanning. Updating your system components usually resolves the issue.
A mismatch between the scanner's driver instructions and Adobe Acrobat's PDF generation process can trigger unsupported format errors. Ensuring all software is up to date restores proper communication between macOS, Acrobat, and your scanner.
Open Adobe Acrobat. Click on 'Help' in the top menu bar, then select 'Check for Updates'. Follow the prompts to install the latest version.
Click the Apple menu in the top-left corner, select 'System Preferences' (or 'System Settings'), and click on 'Software Update'. Install any pending macOS updates.
Visit your scanner manufacturer's official website (e.g., Canon, HP, Epson). Search for your exact scanner model, download the latest macOS driver, and install it on your computer.
Change Scanning Color Mode to Grayscale or Black & White
Bypass the color processing error entirely by instructing the scanner to capture the document without complex color formatting.
Scan and Edit PDFs Seamlessly with WPS Office
If scanning conflicts persist in Acrobat, try WPS Office. It offers a lightweight, highly compatible PDF editor that easily handles image-to-PDF conversions and scanned document management on macOS without complex driver errors.
- 1. Install WPS Office: Download and install WPS Office for Mac from the official website.
- 2. Open the PDF Tools: Launch the application, navigate to the 'PDF' tab, and click on 'Picture to PDF'.
- 3. Import Your Scans: Use your Mac's Image Capture to scan the document natively, then drop the image file directly into the WPS PDF tool.
- 4. Save as PDF: Adjust the page size and orientation if needed, then click 'Export PDF' to save your new document.

Frequently Asked Questions
Why does Acrobat say 'The selected color format is not supported'?
This error occurs when the color data sent by your scanner's driver cannot be correctly interpreted by Adobe Acrobat. It is typically caused by outdated scanner drivers, macOS updates, or an older build of Acrobat.
How can I check if my scanner is working properly on my Mac?
You can isolate the issue by using the 'Image Capture' app built into macOS. Open Image Capture via Spotlight search, select your scanner, and try to scan. If it works, the issue is specific to Acrobat and not your scanner hardware.
Will scanning in Black and White fix the color format error?
Yes, switching the scanning mode from Color to Grayscale or Black and White simplifies the image data. This often bypasses the formatting conflict between the scanner driver and Adobe Acrobat.




