wondershare pdf element
In the opened PDF document, right-click with your mouse and click Select Tool (a check mark appears when selected)
Revert to an earlier version for non-compliant PDFs At times you may try to open several PDF files on your Windows 10 PC and they fail to open because they were created from non-Adobe productsPDF files created from non-Adobe products don’t always comply with the PDF standards and specifications hence do not open in Adobe Acrobat or Reader
Also, earlier versions of Adobe Acrobat or Reader are not as strict as the newer versionsSo, when using the latest version you might not be able to open a PDF file that you used to open in the older version of the appIf you trust the creator of the file and its origin, then you should consider reverting to an earlier version of Acrobat or Reader to open the file
Reverting to an older version will require you to first uninstall the version of the Reader or Acrobat currently on your drive5
Repair program installation pdf_files_repair Adobe Acrobat or Reader, or the resources they rely on could be damaged, hence unable to execute their functions effectively
The solution here is to repair the installationPart 2: 5 Effective Methods to fix the "Cannot Open PDF" Error
So, how to fix pdf not opening? Let's now consider five different methods to fix the "cannot open PDF" errorMethod 1: Disable the protected mode at startup Starting with version XI, Adobe Reader has a protected mode that runs files in a sandbox
This security feature ensures that malicious code that may be resident in the PDF does not infect system directories and the Windows registryThere is also a protected view where most features are disabled
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