To convert an e-book from traditional to simplified, you can follow the following steps: 1. Confirm the code of the e-book: Generally speaking, the code of the e-book should be consistent with the code of the computer operating system. If the operating system was in Traditional Chinese, then the e-book should also be in Traditional Chinese. You can check the code in the e-book's attributes. 2. Downloading and installing the font file: If you want to convert the e-book into simplified Chinese, you need to download the corresponding simplified Chinese font file. You can find the font file suitable for the operating system and coding method on the font supplier's website and download and install it. 3 Open the e-book file: Open the e-book file with a text editor and try to replace the text content with the corresponding simplified text content. 4. Check the text: After the replacement, you should carefully check the text to make sure there are no mistakes in spellings or grammar. Note that the conversion process may affect the format and content of the e-book, so it is recommended to back up the e-book file before conversion. In addition, if you are not sure how to operate or encounter problems, you can consult the font supplier or the support team of the e-book creation software.