Fix PDF Files Not Opening on Double-Click in macOS
Question details
The user is unable to open PDF files by double-clicking them on their Mac, despite the files functioning correctly in the default Preview app.

- Product
- Adobe Acrobat Reader
- Device & OS
- macOS Mojave
- Scenario
- Attempting to open a downloaded or saved PDF file by double-clicking it on a Mac computer.
- Observed behavior
- The PDF file fails to open in the designated third-party PDF application (Adobe Acrobat Reader) when double-clicked, though it can still be opened via Apple Preview.
Ensure your macOS system is fully updated, and verify that the specific PDF file is not corrupted by dragging and dropping it into a standard web browser like Safari or Chrome.
Set the Default PDF Application via 'Get Info'
Reassign the default program for all PDF files on your Mac to repair the broken double-click association.
macOS occasionally loses track of default file associations, especially after system or app updates. Forcing the operating system to re-register your preferred PDF application for all matching files usually resolves double-click failures instantly.
Locate any PDF file on your Mac using Finder and click on it once to highlight it without opening it.
Right-click the highlighted file and select 'Get Info' from the context menu, or simply press Command + I on your keyboard.
Scroll down the Get Info window to find the 'Open with:' section and click the small arrow next to it to expand the menu.
Click the dropdown menu and choose your preferred PDF reader, such as Adobe Acrobat Reader or WPS Office.
Click the 'Change All...' button located just beneath the dropdown menu, then confirm your choice in the pop-up dialog to apply this setting to all future PDF documents.

Clean Reinstall of the PDF Application
If changing the default application does not work, the software installation itself might be corrupted and requires a clean reinstall.
Open and Edit PDFs Instantly with WPS Office
Avoid frustrating file association errors and sluggish load times on macOS by switching to WPS Office. It features a built-in, lightweight PDF reader and editor that opens files instantly and integrates seamlessly with your Mac environment.
- 1. Download and Install: Download WPS Office for Mac from the official website and complete the installation process.
- 2. Set as Default Viewer: Right-click any PDF file, select 'Get Info', choose WPS Office from the 'Open with' dropdown, and click 'Change All'.
- 3. Open with Double-Click: Simply double-click any PDF file on your Mac to instantly view or edit it using the WPS PDF tool.

Frequently Asked Questions
Why do PDFs open in Preview instead of Adobe Acrobat on my Mac?
macOS sets Apple Preview as the default application for viewing images and PDFs. If the association with a third-party app like Adobe Acrobat is broken by an update or permission error, the system automatically reverts to using Preview.
Can a corrupted PDF file prevent it from opening on double-click?
Yes. If a PDF file is severely corrupted or incomplete, your default reader may crash or refuse to launch when you double-click it. Try opening the file in a different application or testing other PDF files in the same folder to isolate the issue.
Will clicking 'Change All' apply to PDFs I download in the future?
Yes, clicking 'Change All' in the macOS 'Get Info' window updates your Mac's system-wide file association preferences, ensuring that all existing and future PDF files you download will open with your newly selected application.




