Some time you meet error when open pdf file : The document could not be opened. It may already opened or in use by another application
The PDF is damaged.
The Reader or Acrobat installation or update is damaged.
Reader or Acrobat is out of date.
File type is unrecognizable.
PDFs were created with non-Adobe programs.
Try the suggestions below as your first troubleshooting steps.
Method 1:
If you installed both of Foxit reader and abode reader. Please check it and remove 1 program for open pdf file. Have many idea that both of them sometime cannot used at the same time.Method 2:
Many factors can prevent a PDF from opening in Adobe Reader or Acrobat, including these:The PDF is damaged.
The Reader or Acrobat installation or update is damaged.
Reader or Acrobat is out of date.
File type is unrecognizable.
PDFs were created with non-Adobe programs.
Try the suggestions below as your first troubleshooting steps.