Please help where you draw annotation on thumbnail

hi,

Please suggest the method where you draw annotation on thumbnails.Currently the annotation on thumb is shown when I go back from PDF to list of pdfs table and open pdf agaain.
I need to refresh thumbnails real time as the annotation is happening.

You can save the thumbnails img in sandbox cache file,
in RDFileTableController, updateImageForCellAtIndexPath method ,
line 604: UIImage *img= [UIImage imageWithCGImage:m_img];
You can get the thumbnail img ,use a dictionary save the img path as value,and save cell indexpath as key.
First you download the img ,and save it ,after that you can use cache file.