This may not be the issue you may encounter very often but if it happens you may have hard time to figure it out. In that case you may appreciate it. In any case, it’s not bad idea to be aware of it even if it never happens to you. I have to admit, most of these blog posts I use for my personal reminders….Here is the story:
Customer has Adobe Acrobat 6 and Adobe Reader 10. When he tries to plot using DWG to PDF.pc3 while having an option to automatically open PDF upon creation, the PDF is being opened in Adobe Acrobat 6. This would not be so much of the issue if version of PDF was not newer and as result it would not open in older version of Adobe. Naturally, the user would check Windows defaults settings. But that was not it and it did not help, by the way. One way to open PDF was by double clicking PDF; that works fine. Again, the issue was that when set to automatically open it would open in wrong version of Adobe.
So to resolve this issue there are two known ways:
One that may be easier and safer is to uninstall the older version Adobe Reader (for instance 10) and install the newest one (at the time it is version 11). This logic can apply to other versions you may have installed. Please go to Control Panel>Programs and Features and check what versions you have installed.
Other way involves adjusting some registry settings and I would suggest that you take special caution when doing it. I would recommend making a copy of the registry key, as well.
1. To get into Registry Editor, go to Windows search box and type REGEDIT and click Enter
2. Then browse to following keys:
HKEY_CLASSES_ROOT\AcroExch.Document\Shell\Open\Command3. On the right side of the Registry Editor double-click on (Default) value and set value data to
"C:\Program Files (x86)\Adobe\Reader 10.0\Reader\AcroRd32.exe" "%1"
Keep in mind that the version may be different depending on the version you have installed.
4. Next time you create PDF from your drawing it should open in Adobe Reader 10
I hope this helps somebody.