I added the code for freeText Annotation in the webviewer to add text annotation programmatically in the pdf . After adding the annotation code the download button provided by the webviewer stopped working.
But other annotation except from freetext like rectangular annotation etc worked.
After adding the freeText annotation programmatically i even cant send my annotated pdf as a blob.
It gives type Error(check the error image provided with this).
Code i used to add the freeText annotation is the same provided in this link by pdftron