There are a number of things that have to be set up correctly for a stamp to work as a dynamic stamp, form the template name to the calculation script. If you provide the details of how you set the stamp PDF, it would help, as would the following book which has all the information you need: www.amazon.com/About-Stamps-Acrobat®-Paperless-Workflows/dp/098561470 6/
I've followed exactly the steps from here http://www.ehow.com/how_5935062_create-dynamic-stamp-acrobat.html but no luck.
I tried modified one of the stamp in Dynamic.pdf by adding a picture below the dynamic form and it'll work. But if i create a new custom stamp, it doesnt work.
Steps I have tried:
1. Create a my-stamp.pdf
2. Add the dynamic date (it is working at this point. it'll use the current date)
3. Save my-stamp.pdf
4. Open mydocument.pdf
5. Create custom stamp (browse to my-stamp.pdf and add it)
6. Goto Comments -> Annotations -> Select my-stamp.pdf and add to the document (the date is showing the date on step 2)
It is the same as the calculation script in the default Approved stamp in the dynamic.pdf
event.value = (new Date()).toString();
AFDate_FormatEx("h:MM tt, mmm dd, yyyy");
event.value = "By " + ((!identity.name || identity.loginName != (event.source.source || this).Collab.user) ? (event.source.source || this).Collab.user : identity.name) + " at " + event.value;
In post #2 above, you list six steps. Step #2 needs to come after step #5. After adding your custom stamp page (my-stamp.pdf), you have to find the stamp file in your stamps folder and then add the text field, not before. This is described in steps 10 and 11 in the tutorial you linked to earlier.