Step-by-step guide: How to convert a CHM help file to an ePub or Kindle eBook

Users expect their documentation to be easily accessible from the wide variety of devices available to them such as the popular eBook readers. Unfortunately, those eReaders can’t handle the CHM file format. Using HelpNDoc, it is easy to import an existing CHM help file and convert it to an ePub or Kindle eBook.

Import CHM help files

Step 1

Click Import on the File Home ribbon tab.

This displays the ‘Import files and folders’ window.

Browse files to import

Step 2

To navigate to the file that you’d like to import, click the button to the far right.
This displays a window that allows you to locate the file.

Select the file and then click Open.
This displays the path to that file on your page.

Then, click Import.
This imports the selected file into your project.

Note: You can import folders containing multiple CHM files into one HelpNDoc project using the Folder import action.

Maintain the table of contents

At this point, you can update the content of the project. Three options are outlined below:

1. Maintain the table of contents

You can add new topics, rename existing topics, remove topics, and modify their order.
Further information about managing the table of contents is outlined in other guides:

Update topic content

2. Update the topic content

You can update the content as well as images and hyperlinks contained in each topic. You can also check spelling.

Instructions are provided in other step-by-step guides:

Manage the library

3. Manage your Library items

You can access your library, a centralized storage area that contains all of the multimedia files (e.g. images, photographs, videos, documents, HTML code, variables, and snippets) that are shared across the entire project.

Detailed instructions for managing library items are provided in other guides:

Quick generation of ePub and Kindle eBooks

Step 3

Click the lower half of Generate help in the Home ribbon tab.

This displays a menu of publishing outputs.

Select EPub EBook or Mobipocket/Kindle EBook.

This generates an eBook version of your CHM help file.

Generate eBooks using builds

Step 3 Alternative

You can click the top half of Generate help in the Home ribbon tab to access the advanced build settings.

This displays the ‘Generate documentation’ window.

Select Build epub documentation or Build mobi documentation in your build list.

If the template settings tab is not displayed, click Customize.

After you update the settings, click Generate to publish the eBook.

Launch generated eBook

Step 4

This displays a summary.

Click the link to view your eBook.

HelpNDoc can import any existing CHM help files and generate multiple documentation formats, including ePub and Kindle eBooks: it is extremely fast and easy to convert existing CHM help files to other formats.

See also