Yes, you should be able to upload new files, and make them available for sale. Here is the process we would suggest:
1. In the Resources tab in the in-browser text editor, one by one, delete an old image and upload a new one, making sure to use the same filename on the new images, as you used on the old image.
2. Generate a preview of the book to see if everything is working properly. This will update all the ebook formats a Leanpub-generated book is available in (i.e. PDF and EPUB).
3. Publish a new version of your book. This will make the newly-generated book available for sale, and this new version will also be what existing readers of your book will get, the next time they click a link to download it.
Related Article: Getting Started Writing a Book in Leanpub's Web Browser Writing Mode
If you have any feedback or questions about this article, please email the Leanpub team about it at hello@leanpub.com!
If you have any questions or thoughts on writing and self-publishing with Leanpub, please join our global community of authors in our Authors Forum here!
Are you interested in self-publishing, and creating your first Leanpub book? Here are some quick tutorials for our most popular writing modes: http://help.leanpub.com/en/articles/3088382-quick-walkthroughs-for-getting-started-on-a-leanpub-book
Are you looking for great deals on Leanpub ebooks, ebook bundles, and courses? Sign up for our Weekly and Monthly newsletter sales here!
Subscribe to our YouTube channel here: https://www.youtube.com/leanpub
Please subscribe to our YouTube channel here: https://www.youtube.com/leanpub
You can also follow Leanpub in lots of other places!
