3Pub Assist software for ePub2 to ePub3 conversion
Available for OSX(Mac) and Windows
The package includes both Windows and Mac versions in the .zip and has been tested on Windows8 and OSX 10.9.2 (Mavericks), but should work on Windows XP, Win7, Win8, OSX 10.7, 10.8 and 10.9. If you have problems with the software, please contact me:
The original ePub2 file should have passed an ePub check, such as is available (freely) from pagina.
You should then check the resulting ePub3 directory and if all OK, edit any files as required (and check again!)
Note, that the ePub checker will create an ePub file for you (if there are no warnings or errors).
Tutorials are available via YouTube (video 12) on creating an ePub file from a directory (Windows and Mac) without using the Pagina epub checker.
3Pub Assist is free to use, but you can also make a donation when purchasing.
If you choose not to donate, the required payment details will not be required.
You may not distribute the software to others:-)
If you have trouble converting your ePub2 file, I will be happy to consider modifying the code, but you will need to email me the ePub2 file for testing purposes.