ChmPlus SE - CHM Reader app for iPhone and iPad

ChmPlus Reader (CHM+ Reader) is a feature-rich CHM (Microsoft Compiled HTML Help) document / ebook reader for iPad, iPhone and iPod touch.

* Features

- Open CHM files instantly (even with huge files)
- Search (find on page & document-wide search)
- Supports CHM files in different languages
- Supports pinch to zoom
- Navigate through table of contents
- Search the index (if available)
- Supports full screen mode
- Supports auto rotation and orientation lock
- Support CHM document that contains .mht pages
- Long press on an image to:
1) Save the image to photo album
2) Copy the image to clipboard (and paste it into your email)
- Night mode (white text on black background)
- Pagination (turn it on in the settings)
- Chinese conversion

* File Management

- Transfer files via Wi-Fi (FTP & HTTP) / iTunes File Sharing
- Create/cut/paste/rename/delete files/folders
- Support opening document with other applications
- Import document from other applications
- Import document from Email
- Send document with Email

* Supported File Types:

- .chm (Microsoft Compiled HTML Help)
- MS Office - .doc, .ppt., .xls, .docx, .xlsx, .pptx
- iWork 08/09 (Pages, Numbers, Keynote)
- PDF, HTML, RTF, .mht, Safari webarchives and text files
- High resolution images
- Audio and video

* Difference Between the SE and Pro Versions

If you would like highlight/annotaion and bookmark features, consider buying ChmPlus Pro instead, otherwise the SE version (standard edition) is sufficient.
There are many other features that are available in the Pro version only, such as text file creation/editing, archive file types support, .zip file creation, etc.

* Support

- https://langui.net/chmplus-se/