Use Better PDF Explorer for Jira from Midori to export a table grid to PDF
Introduction
The Better PDF Explorer for Jira allows to export an issue to pdf - this faq details how to configure the add-on to export a table grid
This FAQ has been made possible by the people from Midori - the creators of the add-on.
Check the discussion on Atlassian Answers
More details on the JIRA PDF View Plugin can be found on their marketplace listing.
How to configure the add-on
The add-on is providing editable templates (Administration -> ... -> PDF Templates).
Edit the issue-fo.vm and add following code section at the right location.
(Note: Family List is the name of the table grid editor field)
#set ($customfieldId = "Family List")
#set ($customfield = $customFieldManager.getCustomFieldObjectByName($customfieldId))
#set ($moduleDescriptor = $customfield.getCustomFieldType().getDescriptor())
#set ($fieldLayoutItem = ${fieldLayout.getFieldLayoutItem($customfield.id)})
#set ($htmlMarkup = $moduleDescriptor.getViewHtml($customfield, "htmlMarkup", $issue, $fieldLayoutItem))
#set ($htmlMarkup = $htmlMarkup.trim())
## remove all <div ...> tags
#foreach($j in [1..10])
#set($s = $stringutils.indexOf($htmlMarkup, "<div"))
#if($s != -1)
#set($e = $stringutils.indexOf($htmlMarkup, ">", $s))
#if($e != -1)
#set($e = $e + 1)
#set($htmlMarkup = $stringutils.remove($htmlMarkup, $stringutils.substring($htmlMarkup, $s, $e)))
#end
#end
#end
## remove all </div> tags
#set($htmlMarkup = $stringutils.remove($htmlMarkup, "</div>"))
## remove table tag without valid rows (NB: this is a bug in Table Grid)
#set($e = $stringutils.indexOf($htmlMarkup, '_grid"></table>'))
#if($e != -1)
#set($s = $stringutils.lastIndexOf($stringutils.substring($htmlMarkup, 0, $e), "<table"))
#if($s != -1)
#set($e = $e + 15)
#set($htmlMarkup = $stringutils.remove($htmlMarkup, $stringutils.substring($htmlMarkup, $s, $e)))
#end
#end
<fo:block color="green">
$pdfRenderer.htmlToFo($htmlMarkup)
</fo:block>