> For the complete documentation index, see [llms.txt](https://help.novacuraflow.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.novacuraflow.com/6.12/development/flow-portal-2/portlets/document-viewer.md).

# Document viewer

## General

General data is required for all portlets.

[General configuration](/6.12/development/flow-portal-2/portlets/common-configuration.md#general)

## Listeners

The portlet can listen to the following events:

* On Row Selection
* On Point Selection

<div align="left"><img src="/files/-M8tdKUq3o-yseWI9ODM" alt=""></div>

[Listeners configuration](/6.12/development/flow-portal-2/portlets/common-configuration.md#listeners)

## Data

### Data source

The portlet data source configuration enables the portlet to execute specified queries towards the chosen database connector to fetch data, or fetch data from a workflow.

* Database: uses a flow connector to retrieve data from a database
* Workflow: runs a workflow to retrieve data

[Data source configuration](/6.12/development/flow-portal-2/portlets/common-configuration.md#database-source)

[Workflow source configuration](/6.12/development/flow-portal-2/portlets/common-configuration.md#workflow-source)

### Presentation

Data: the content which is to be displayed

File name: the name of the file

<div align="left"><img src="/files/-M0rRoA2taa15E9fxCiE" alt=""></div>

## Style

Change the header text color and add a header stripe by configuring style.

[Style configuration](/6.12/development/flow-portal-2/portlets/common-configuration.md#style)


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