To convert PDF to ePub without losing fonts, you need to use a reliable PDF converter that properly handles font embedding and formatting during the conversion process.

First, make sure the original PDF has embedded fonts. If the fonts are not embedded, they may change automatically during conversion. Then, open a trusted tool like SysInfo PDF Converter Tool, add your PDF file, and choose ePub as the output format. Select your destination folder and start the conversion. A good converter preserves text styling, headings, spacing, and embedded fonts as closely as possible.

Keep in mind that ePub is a reflowable format, meaning the text adjusts based on screen size. Because of this, some font variations may slightly change depending on the reading app. However, when fonts are properly embedded and converted correctly, the overall appearance remains consistent.
Read more: https://www.sysinfotools.com/blog/convert-pdf-to-epub/