Microsoft Localization. Microsoft PnP. Healthcare and Life Sciences. Internet of Things IoT. Enabling Remote Work. Small and Medium Business. Humans of IT. Green Tech. Test this out by opening a different PDF file and ascertain that nothing is wrong with the Acrobat Reader program or your computer. In case a different PDF file opens then ask the sender to either resend you the same PDF file or resend it in a different file format.
However, if the PDF cannot open issue re-appears across all the files you try to open on your computer, then there is something wrong with the program itself, resolve to these 4 methods to fix the issue. Follow these steps to disable the protected mode at startup. Firstly, open Adobe Reader. Uncheck the Enable Protected Mode at Startup option. Lastly hit the Yes button to turn off Protected Mode. Next, go to the Menu bar and click the Help menu.
Then scroll down and select the Check For Updates option. Adobe Reader tool will automatically check for available updates. Ensure you are connected to the internet for it to connect to the server during the search.
Wait for the update to finish then restart your computer. Windows 10 Select Always use this app to open. Windows Click OK. Mac OS users. Click the PDF file's icon in the Finder to select it. Click Change All. Restart your computer. Be cautious. People need to change the settings manually when they cannot open PDF. The steps to set default programs on Windows and Mac are different.
If this didn't work, you can also try to revert to an earlier version of Adobe Reader or Acrobat. If the PDF file is damaged, you may try to find a way to repair corrupt file or just ask the sender to resend the file to you.
How to open a PDF file easily?
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