Fix "PDF File is Already Open or in Use" Error During Download
Question details
The user encounters a "file is already open or in use" error when attempting to download or open a PDF from a website.

- Product
- PDF Reader
- Device & OS
- not provided
- Scenario
- Downloading and attempting to view PDF documents from web browsers.
- Observed behavior
- A system error message appears stating that the PDF cannot be opened or downloaded because it is currently in use or already open by another program.
Ensure that you close any background browser tabs or PDF reader applications that might be secretly holding the PDF file open. Also, check your browser's download settings to prevent it from automatically opening downloaded files.
Save the PDF Locally Before Opening
Avoid opening the PDF directly from the browser's temporary folder, which often triggers the "in use" error.
When a browser tries to download and open a PDF simultaneously, it can lock the temporary file, preventing your dedicated PDF reader from accessing it. Saving the file manually resolves this conflict.
Instead of left-clicking to open the PDF in the browser, right-click the PDF link on the website.
Choose 'Save link as' or 'Save target as' from the context menu to download the file directly to your computer.
Select a designated folder on your local drive (like Desktop or Documents) and click 'Save'.
Navigate to the saved folder using File Explorer and double-click the PDF to open it safely in your preferred PDF reader.

Change Browser PDF Settings
Stop the browser from automatically opening PDFs, forcing it to download them instead.
Try an Alternative Web Browser
If a specific browser continues to lock the file during download, switching browsers can bypass site-specific or cache-related glitches.
Easily View and Manage PDFs with WPS Office
Avoid browser conflicts and temporary file errors by making WPS Office your default PDF reader. It provides a stable, lightweight environment for reading, editing, and managing downloaded PDFs seamlessly.
- 1. Download WPS Office: Visit the official WPS website and download the free WPS Office suite.
- 2. Install the software: Run the installation file and follow the on-screen prompts to complete the setup.
- 3. Set as default PDF reader: Right-click any local PDF file, select 'Open with', choose 'WPS Office', and check the option to 'Always use this app to open .pdf files'.

Frequently Asked Questions
Why does my computer say the PDF file is in use when I just downloaded it?
This usually happens because your web browser attempts to preview the file, or an antivirus program is actively scanning the temporary download folder, temporarily locking the file from being accessed by your PDF reader.
Can clearing browser cache fix PDF download errors?
Yes. Corrupted temporary internet files can cause the browser to mishandle PDF downloads. Clearing your browser's cache and cookies often resolves unexpected file-in-use conflicts.
How do I stop PDFs from opening automatically in Chrome?
Go to Chrome Settings > Privacy and security > Site Settings > Additional content settings > PDF documents, and select the option to 'Download PDFs' instead of opening them automatically in Chrome.
What should I do if a specific website always gives me PDF errors?
If the error only occurs on one website, the site may have incorrect server configurations for file hosting. Try contacting the site administrator or use a different browser to see if it circumvents the issue.




