https://bugs.documentfoundation.org/show_bug.cgi?id=168011
Bug ID: 168011
Summary: Enhancements to Fixed-Layout EPUB Export
Product: LibreOffice
Version: 24.2.7.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
Hello. I'm a regular LibreOffice user and would like to propose some
improvements to the fixed-layout EPUB export functionality. I've encountered
problems using this feature to publish a comic book on Amazon Kindle and would
like to suggest two enhancements.
Steps to Reproduce:
1. Create a new document in LibreOffice Writer.
2. Insert images (JPG or PNG) onto each page of the document.
3. Go to File > Export As > Export as EPUB.
4. In the export dialog, select the "Fixed-Layout" option.
Actual Results:
1. Image Conversion: The JPG/PNG images inserted into the document are
automatically converted to the SVG format during the export process. Platforms
like Kindle Direct Publishing do not process the SVG format, which forced me to
edit the generated EPUB to replace the SVG images with the original JPGs. This
automatic conversion makes the file incompatible with some online stores.
2. Image Alignment: When viewing the exported EPUB, the images are not
centered. They are aligned to the left, which compromises the visual layout and
differs from the behavior of a PDF. I had to use Calibre and edit the CSS file
to center them.
Expected Results:
1. Conversion Option: Add an option to the EPUB export menu that allows the
user to choose whether or not to convert the images to SVG. Keeping the
original format (JPG, PNG) would be a very useful alternative, since SVG is not
universally accepted.
2. Default CSS for Alignment: Generate a CSS file that centers the content by
default. This would make the exported EPUB's layout look more ideal, similar to
a PDF, and eliminate the need for manual corrections.
Reproducible: Always
User Profile Reset: No
Additional Info:
The ability to export to a fixed-layout EPUB is a unique feature of LibreOffice
in the world of open-source software. I believe that with these improvements,
the tool will become even more robust and efficient for creating visual content
like children's books and comic books.
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