MarkdownPanel for Notepad++

Plugin to preview Markdown files in Notepad++

• lightweight plugin to preview markdown within Notepad++
• displaying rendered markdown html with embedded IE11
• can save rendered html to a file
• Dark mode support (requires Notepad++ version 8.4.1 or later)

Current Version

The current version is 0.7.3 it can be found here

Prerequisites

• .NET 4.5.2 or higher

Installation

Installation in Notepad++

The plugin can be installed with the Notepad++ Plugin Admin. The name of the plugin is Markdown Panel.

Manual Installation

Create the folder "NppMarkdownPanel" in your Notepad++ plugin folder (e.g. "C:\Program Files\Notepad++\plugins") and extract the appropriate zip (x86 or x64) to it.

It should look like this:

Usage

After the installation you will find a small purple markdown icon in your toolbar. Just click it to show the markdown preview. Click again to hide the preview. Thats all you need to do ;)

With dark mode enabled in Notepad++:

Settings

To open the settings for this plugin: Plugins -> MarkdownPanel -> Settings

• CSS File

  This allows you to select a CSS file to use if you don't want the default style of the preview

• Dark mode CSS File

  This allows you to select a Dark mode CSS file. When the Notepad++ dark mode is enabled, this Css file is used. When no file is set, the default dark mode Css is used.

• Zoom Level

  This allows you to set the zoom level of the preview

• Automatic HTML Output

  This allows you to select a file to save the rendered HTML to every time the preview is rendered. This is a way to automatically save the rendered content to use elsewhere. Leaving this empty disables the automatic saving.
  Note: This is a global setting, so all previewed documents will save to the same file.

• Supported File Extensions

  This allows you to define a list of file extensions, which are supported and displayed in Markdown Panel. Other file type won't be displayed (there will be a warning). The file extensions have to be separated by a comma ,

• Automatically show panel for supported files

  When this option is checked, Markdown Panel will open the preview window automatically for files with a supported extension. The preview will be closed for files with no supported extension.

• Show Toolbar in Preview Window

  Checking this box will enable the toolbar in the preview window. By default, this is unchecked.

• Show Statusbar in Preview Window (Preview Links)

  Checking this box will show the status bar, which previews urls for links. By default, this is unchecked.

Preview Window Toolbar

• Save As... ()

  Clicking this button allows you to save the rendered preview as an HTML document.

Synchronize viewer with caret position

Enabling this in the plugin's menu (Plugins -> MarkdownPanel) makes the preview panel stay in sync with the caret in the markdown document that is being edited.
This is similar to the Synchronize Vertical Scrolling option of Notepad++ for keeping two open editing panels scrolling together.

Synchronize with first visible line in editor

When this option is enabled, the plugin ensures that the first visible line in the editor is also visible in the preview. (This is an alternative to Synchronize viewer with caret position)

Version History

Version 0.7.3 (released 2023-02-12)

• bug fixes
  • Settings file NppMarkdownPanel.ini isn't used anymore #78
  • Plugin release v0.7.2 searches help files in wrong directory #76

Version 0.7.2 (released 2023-02-11)

• bug fixes
  • Display images with Url-encoded space character (%20) in the filename (contributed by andrzejQ ) #39
• features
  • Plugin-Menu entry renamed to MarkdownPanel
  • Syntax highlighting is now controlled by CSS Styles. See style.css and style-dark.css after comment /* Syntax Highlighting */ #71
  • Feature to preprocess markdown files before they are send to the converter. Furthermore it's possible to postprocess the generated html files (created by markdig). To enable this feature it's necessary to configure pre/post-processor commands (can be any commandline program) in the config file plugins/Config/NppMarkdownPanel.ini. The placeholders %inputfile% and %outputfile% have to be set in the commandline and will be resolved at runtime (with temporary file names). An example C# commandline-project can be found under: misc\PPExtensions\MdpPrePostprocessorTemplate.sln

[Options]
PreProcessorExe=C:\temp\preprocessor.exe
PreProcessorArguments=%inputfile% %outputfile%
PostProcessorExe=C:\temp\preprocessor\postprocessor.exe
PostProcessorArguments=%inputfile% %outputfile%

Version 0.7.1 (released 2022-12-27)

• bug fixes
  • Footnotes (links to footnotes) don't work #28
  • Code fences not rendered for unknown languages (contributed by rdipardo) #55
  • Errorhandling when libraries are missing #57
  • Zoom label does not update on Settings panel init (contributed by vinsworldcom) #58
  • Settings dialog should render only if visible (contributed by vinsworldcom) #66
• features
  • Synchronize with first visible line in editor #14
  • Select/follow active editor pane when using mulitple editors #20
  • YAML Frontmatter is rendered as code block #46
  • Status bar to preview URLs for links (contributed by vinsworldcom) #60
  • Save As toolbar button provides default directory and filename (contributed by vinsworldcom) #61
  • Menu includes Help to access README / menu item order improved (contributed by vinsworldcom) #64

Version 0.7.0 (released 2022-12-09)

• dark mode support (requires Notepad++ version 8.4.1 or later)
• new markdig 0.30.4 integrated
• code/syntax highlighting
  • example C# code with highlighting:
• new zoom level range from 80 % to 800% (for 4K Displays)
• all html files are saved as utf-8 files
• restrict preview to files with a specific extension
• automatically open panel for supported files
• enhanced about dialog

Version 0.6.2 (released 2022-06-02)

Bugfix release

• viewer was crashed by too large documents (more than 10000 bytes)

Version 0.6.1 (released 2022-05-26)

• fix embedded images
• fix dark icon

Version 0.6.0 (released 2022-05-26)

• plugin headers for npp updated
• darkmode icon
• fixed refresh bug for 64-bit version of plugin
• new zoom level range from 40 % to 400%
• save html
• images for help file now included

Version 0.5.0

• change zoomlevel for the preview in settings dialog
• change css file for the markdown style
• the new settings are persistent
• open settings dialog: Plugins-> NppMarkdownPanel -> Edit Settings

Version 0.4.0

• switched from CommonMark.Net to markdig rendering library

Version 0.3.0

• synchronize viewer with caret position

Version 0.2.0

• Initial release

Used libs and resources

Name	Version	Authors	Link
Markdig	0.30.4	xoofx	https://github.com/lunet-io/markdig
NotepadPlusPlusPluginPack.Net	0.95	kbilsted	https://github.com/kbilsted/NotepadPlusPlusPluginPack.Net
ColorCode (Portable)	1.0.3	Bashir Souid and Richard Slater	https://github.com/RichardSlater/ColorCodePortable
Markdig.SyntaxHighlighting	1.1.7	Richard Slater	https://github.com/RichardSlater/Markdig.SyntaxHighlighting
github-markdown-css	3.0.1	sindresorhus	https://github.com/sindresorhus/github-markdown-css
Markdown icon		dcurtis	https://github.com/dcurtis/markdown-mark

The plugin uses portions of nea's MarkdownViewerPlusPlus Plugin code - https://github.com/nea/MarkdownViewerPlusPlus

Contributors

Thanks to the contributors:

vinsworldcom, rdipardo, andrzejQ, RicoP, UrsineRaven and eeucalyptus

License

This project is licensed under the MIT License - see the LICENSE.txt file for details