How to Stop Acrobat Distiller Opening When Downloading AI Files
Question details
The user needs to prevent Acrobat Distiller from automatically launching when downloading an Adobe Illustrator (.ai) file from a browser.

- Product
- Adobe Illustrator / Acrobat Distiller
- Device & OS
- not provided
- Scenario
- Downloading an AI vector graphic file from the internet via a web browser.
- Observed behavior
- Acrobat Distiller automatically opens the file instead of saving it normally or opening it in Adobe Illustrator, likely due to incorrect file associations or browser automation settings.
Ensure that Adobe Illustrator is currently installed on your computer and verify that the downloaded file actually ends with the '.ai' extension rather than '.pdf'.
Change the Default Application for AI Files
Reassign the .ai file extension in your operating system so it opens with Adobe Illustrator by default instead of Acrobat Distiller.
Often, installing new Adobe software or PDF tools can accidentally hijack the file associations for vector files. Correcting the default app will ensure AI files route to Illustrator.
Open your File Explorer or Finder and navigate to your Downloads folder to find the downloaded AI file.
Right-click on the AI file. On Windows, select 'Open with' and then click 'Choose another app'. On Mac, select 'Get Info'.
Select 'Adobe Illustrator' from the list of applications. Make sure to check the box that says 'Always use this app to open .ai files' (Windows) or click 'Change All' (Mac), then apply the changes.

Adjust Browser Download Settings or Use Save As
Prevent the browser from automatically opening the file using its built-in PDF workflow or Distiller plugin.
Repair or Reinstall Adobe Illustrator
Restore broken or missing registry keys and file associations by running the built-in repair tool.
Need a Better Way to Handle Documents and PDFs?
While resolving your design software associations, make sure your everyday documents are handled perfectly. WPS Office is a free, lightweight, and highly compatible alternative to Microsoft Office. It includes a built-in, robust PDF editor that manages your document workflows safely without hijacking unintended file extensions.
- 1. Download the Installer: Navigate to the official WPS Office website and click the free download button for your operating system.
- 2. Install the Suite: Run the downloaded installer and follow the quick setup wizard to install the lightweight suite.
- 3. Manage Documents Safely: Open WPS Office to seamlessly view, edit, and convert your Word, Excel, PowerPoint, and PDF files.

Frequently Asked Questions
Why are my AI files showing as PDF icons in my folder?
This happens when your operating system's default program for AI files gets changed to a PDF reader like Acrobat Distiller or Adobe Reader. You can fix this by right-clicking the file, selecting 'Open with', and setting the default application back to Adobe Illustrator.
Can I disable Acrobat Distiller from starting automatically?
Yes, check your browser's download settings to ensure it isn't set to automatically open PDF or PostScript files. You can also check your system's startup applications and disable Distiller from running in the background.
Does renaming the file extension from PDF to AI fix the issue?
If the file was incorrectly saved by the browser as a PDF but contains original Illustrator data, renaming the extension from .pdf to .ai might help Illustrator recognize it. However, if the issue is just an OS file association, changing the default app is the correct and permanent solution.




