[Analogus]

That depends on the EPUB itself. If you have good luck, it works out of the box.


Points responsible for working/not working:

1) What version of PRS+ do you use? (official version or for example my 'ZORK' edition)

2) If you use the official version, you have to prepare your own CSS-file(s). You have to do it the right way.

3) If you use the ZORK-edition you have a couple CSS-files on your reader. They will not work with all ebooks.

4) Did you copy one of the 'ready-made-packages' from my website? They will not work with every ebook out of the box.

In all cases the crucial point is:

Most EPUBs use their own intern CSS-file. You can override its definitions with mentioned CSS-files, but you need to use appropriate CSS-tags (p, @page, div, ...). Most problematic are EPUBs with embedded fonts.
My ready-made-packages CSS-files use common CSS-tags. Sad but true - it's not possible to cover any EPUB file existing.

To add CSS-tags in your CSS-files you have to find out which tag is responsible for the formatting in your epub-file. I use CALIBRE therefor:
Open an ebook with calibre (just double-click on it) --> scroll further to the main text --> right-click on it and select 'inspect'. Have a look there and learn how to use those informations you will be offered there...

Often a quick solution is to remove embedded fonts from the ebook and/or convert the ebook with CALIBRE from epub to epub. Sounds senseless but works well. CALIBRE in that case alters CSS-tags, which can be the solution.

A very rough and brute solution is to remove the internal CSS-file from the ebook.

Removing fonts and removing CSS-file goes that way:

Use a PC and rename the ebook-file. Change the file-ending from 'epub' to 'zip'. Open the ZIP-file and remove fonts and CSS-file you find inside.

Other way is to use CALIBRE. use right-mouse onto your file. The menu-point should be 'enhance ebook' or something like that. This functions 'explodes' the EPUB-file in the same manner as described above with using ZIP-functionality.


A view words at the end:

I fear you will not be able to bypass the necessity to edit CSS-files in the one or the other way and gain at least little knowledge about CSS-code if you want to change font in epub with using PRS+.

I myself have had no knowledge about CSS and very, very little knowledge about developing. But Sony's PRS-x50 series in combination with PRS+ made it worth improving skills in those topics. What I want to say is:

Do not give up too early ;-)

A.