Hello,
In order to view the dynaform, it is required to setup the Permissions, who can view and at what step. Please have a look at the documentation to learn more about Permissions.
http://wiki.processmaker.com/3.0/Process_Permissions
Once you have setup the required permissions, go to the Participated Cases and open the Case whose dynaform you wish to view. On the upper left hand you will see a dropdown Information, on clicking it will display various options, select Dynaforms. All the dynaforms of that case which have been completed till now would be visible, select one and click the Preview button in order to view the contents.
Only those users, who have the permission to view the Dynaform, will be able to see the contents of the form. Please have a look at the screenshot which demonstrates the same.
dynaform.png (8.68 KiB) Viewed 7946 times
Please let me know if you need further assistance.
Best Regards,
Zainab