PDF's/A Format is not opening in Acrobat 9.0

Say if a firm uses a third party software to create a pdf, sometimes it won't open in Adobe 9.0 with proper format, sometimes you see a blank page...

Solution:

1. Open the Pdf using Adobe Pro 9.0 and above
2. Go to File -> Export -> Image -> Tiff
3. Exit Adobe Pro 9.0
4. It will generate as many as tiff files depending on the number of pages you have in the source pdf
5. Select all the tiff files which got generated right click -> combine support files in acrobat
6. In combine files dialog choose combine files at the bottom of the page
7. Save the file

This Will solve the problem and it will open fine with proper format and text...