Turn an EPUB into an editable Word document, chapter by chapter - here in this tab, with nothing uploaded.
Editing a book in Word usually means it is your own manuscript. The .docx is written here in the browser, and the book never leaves your computer.
Headings (as Word's own heading styles), paragraphs, bold, italics, lists, block quotes and links, with each chapter starting on a new page.
No - the text and its structure come across; images are left out of the Word file.
Only if they have no DRM. Copy-protected books are encrypted, and removing that is not something this site does. Books from Project Gutenberg, Standard Ebooks, Humble Bundle and most indie stores are DRM-free.