Quoting quoth, "Madness using images / png annotation with epubs, but you can if you want to."
I get sent manuscripts from other authors to read sometimes and prefer to convert them to kepubs and read the text on my Kobo (currently, Clara 2e and Libra 2) rather than in hardcopy or in Word.
I often send back screenshots of pages I've put highlights on. It works quite well for them and for me. But I'm eying the Elipsa 2e as a way to also put standard proofreader's marks on the screens.
So, my workflow isn't your workflow, old boy. Mine is: a friend asks me to read a manuscript; I want to read it comfortably, so I put it on my Kobo; I'm not about to fiddle around with the ridiculous onscreen keyboard on the Kobo and instead just highlight things that the original author should revisit. I never edit the original author's Word document. However, it'd be handy to be able to put a "delete" curlycue over an extraneous word or to be able to add a scrawled "cliché!" in the margins.
And, of course, Kobo's sales info for the Elipsa 2e shows it being used to mark up a Kepub with handwriting:
https://www.chapters.indigo.ca/en-ca...8704-item.html
Also, I've long taken screenshots of Kobo pages I've highlighted and dumped them into Evernote, which performs OCR on them, making them searchable. I've got a "saved search" on Evernote with the following parameters; it makes it easy to search just within Kobo screen captures:
Code:
matching ALL of the following:
contains words starting with "screen_"
containing image/png
with advanced filters "intitle:png"
With that, it took but an instant to retrieve this screenshot that contains the term "twistor:"
(Yes, I also export annotations into Calibre and into plain-text files, as well. And I have all of my ebooks knocked down to text files in Textile format and can search my entire library with very sophisticated search strings using a grep utility.)
All best wishes,
Rob
(Past President, Science Fiction and Fantasy Writers of America)