As more and more add-ons are being developed for Firefox, it’s interesting to see what all a browser can be turned into. The Pencil Project is a Firefox extension using which you can draw and design GUI prototypes (having elements like buttons, combo boxes, text boxes) easily by drag and drop. It uses Firefox’s underlying Mozilla Gecko engine.

The Pencil Project Website ScreenshotThese are some of the features offered by Pencil Project:

  • Built-in stencils for diagramming and prototyping
  • Multi-page document with background page
  • On-screen text editing with rich-text supports
  • PNG rasterizing
  • Undo/redo supports
  • Installing user-defined stencils
  • Standard drawing operations: aligning, z-ordering, scaling, rotating…
  • Cross-platforms
  • Adding external objects

After it is installed, Tools –> Pencil Sketching will start the application. Pages are arranged in tabs.

New Document in Pencil

 

Page size can be changed by right clicking on the page tab and visiting its Properties.

Page Properties

image

Below picture shows some elements dragged onto the page

image

It’s very easy and intuitive to work with the Pencil Project. The toolbar icons are clear in what they mean and one can easily for example, line elements such that their vertical centers match. Also every element’s properties and layer order are only a right click away.

The complete page or document (collection of pages) can be exported as PNG.

3 practical uses of The Pencil Project:

  1. Design a web page or even a complete web site since it supports a single background for multiple pages
  2. Design a brochure/pamphlet
  3. Quickly annotate a screenshot by adding bullets, balloons and text

I have taken the liberty of converting (from Ogg Theora video format) and uploading the official videos of this add-on so they can be watched without having to download them. Note that these screencasts are sans audio. Watch them in their full size.

Working with Shapes – Brief introduction to Pencil functionalities in dealing with shapes to create diagrams

Working with Documents - Instructions on how to work with documents, pages and export them into rasterized images

Working with External Objects – Details on the Pencil supports for external images, rich text contents

The Pencil Project can also be installed as a standalone program. Here is the download link.

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