How to Fix PDF Files Opening as Images (Restore File Association)
Question details
Users are experiencing an issue where PDF files open in an image viewer rather than a standard PDF reader, usually caused by broken or altered file associations.
- Product
- Device & OS
- not provided
- Scenario
- Attempting to open a PDF document after performing a file conversion or installing new software.
- Observed behavior
- Double-clicking the PDF file causes it to open as an image inside a default photo application instead of a dedicated PDF viewer.
Ensure you have a dedicated PDF reader installed on your computer, such as WPS Office or Adobe Acrobat Reader, before attempting to change the file associations.
Change the Default PDF Application in Windows
Reassign the default application for the .pdf file extension so that documents open with your preferred PDF reader instead of an image viewer.
When file associations break, Windows may default to opening certain files in its built-in Photos app. You can easily instruct Windows to always use a specific PDF reader.
Locate any PDF file on your computer, right-click it, and hover your cursor over the 'Open with' option in the context menu.
Select 'Choose another app' from the expanded menu to view a full list of installed applications.
Click on your preferred PDF application, such as WPS Office, Adobe Acrobat Reader, or your preferred browser.
Check the box that says 'Always use this app to open .pdf files' (or 'Always' on Windows 11) and click 'OK'.
Change the Default PDF Application on Mac
Restore the correct file association for PDF documents on macOS.
Set WPS Office as Your Default PDF Viewer
Use WPS Office as your default PDF application to easily open, read, edit, and convert PDF documents. It provides a seamless viewing experience, preventing file association errors from interrupting your workflow.
- 1. Download and Install: Download WPS Office from the official website and install it on your computer.
- 2. Open Settings: Launch WPS Office, click on the Settings icon, and access the 'Configuration Tools' or 'File Association' menu.
- 3. Set Default Programs: Select 'Advanced', navigate to 'Compatibilities', and check the box for '.pdf files' to set WPS Office as the default viewer.
- 4. Open Your PDFs: Double-click any PDF file on your computer to instantly open it within the WPS Office PDF reader.
Frequently Asked Questions
Why did my PDF file association change to an image viewer?
File associations can occasionally change after a system update, when a new application is installed and claims default rights for multiple formats, or due to registry configuration errors.
Can I convert a scanned PDF back to a normal text PDF?
If a PDF was generated entirely from scanned images, it will look like a flat image even in a standard PDF reader. You can use the OCR (Optical Character Recognition) feature in WPS Office to extract the scanned text into a searchable and editable format.
What if the 'Always use this app' option is missing or grayed out?
If the option is disabled, you can change default apps through the Windows Settings. Navigate to Settings > Apps > Default apps > Choose default apps by file type, scroll down to '.pdf', and select your preferred PDF reader.
Will setting a new default app alter my document's contents?
No. Changing the default application only instructs your operating system which software to use for displaying the file. The original content, layout, and formatting of the PDF remain completely unaffected.
