# Vb.net **URL:** \ **Category:** General discussion\ **Created:** [April 8, 2016, 4:11pm UTC](https://forum.xltoolbox.net/t/vb-net/66 "2016-04-08T16:11:33Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Mandra\_2016](https://forum.xltoolbox.net/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@Mandra\_2016](https://forum.xltoolbox.net/u/Mandra_2016)\ **Post date:** [April 8, 2016, 4:11pm UTC](https://forum.xltoolbox.net/t/vb-net/66/1 "2016-04-08T16:11:33Z")
1 I am new to [vb.net](http://vb.net) 2º i have many graphic files excel 1 each and I want to export to pdf in [vb.net](http://vb.net) I have the chart in [vb.net](http://vb.net) xlWB.ActiveSheet.ChartObjects ( 1) .Chart but I try to export with your api and adding reference xltoolbox - 64.dll gives have error " Search Results You can not add a reference not valid assembly or component xltoolbox.dll " 3º my English is google translator