diff --git a/content/posts/how-i-convert-pdfs-to-epub.adoc b/content/posts/how-i-convert-pdfs-to-epub.adoc
index 832dfba..dad97c6 100644
--- a/content/posts/how-i-convert-pdfs-to-epub.adoc
+++ b/content/posts/how-i-convert-pdfs-to-epub.adoc
@@ -20,6 +20,9 @@ toc: true
:url-calibre-convert: https://manual.calibre-ebook.com/conversion.html#pdfconversion
:url-emacs: https://www.gnu.org/software/emacs/
:url-emacs-key-notation: https://www.emacswiki.org/emacs/EmacsKeyNotation
+:url-helicon-type: https://www.heliconbooks.com/?id=blog&postid=EPUB3Footnotes
+:url-epub-spec: https://www.w3.org/publishing/epub/epub-contentdocs.html
+:url-ap-semantics: https://www.accessiblepublishing.ca/epub-semantic-aria-roles/
:wp-pdf: https://en.wikipedia.org/wiki/PDF
:wp-epub: https://en.wikipedia.org/wiki/EPUB
:wp-xhtml: https://en.wikipedia.org/wiki/XHTML
@@ -68,7 +71,7 @@ Your files should look similar to this:
[source,html]
--------------------------------------------------------------------------------
-
+
Meine zwei Jahre in Russland
@@ -175,20 +178,21 @@ elisp function:
Once you are done, copy the result into Calibre.
-== Add footnotes
+[#_add_footnotes]
+== Add endnotes
-Use the method from above to copy the footnotes into the now empty Emacs buffer
-and clean them up until you have 1 paragraph per line. Footnotes need to be
+Use the method from above to copy the endnotes into the now empty Emacs buffer
+and clean them up until you have 1 paragraph per line. Endnotes need to be
hyperlink-able, so we can't just wrap them in plain `` tags, they need IDs. I
-like to use `1
[…]
` if there is only one
-footnote-section or `1[…]
` for
-chapter-footnotes. We are going to use a macro with a counter to generate
-consecutively numbered IDs. First, set the counter to 1 with kbd:[C-x]
-kbd:[C-k] kbd:[C-c] `1`. Then, record this macro:
+like to use `1` if there
+is only one footnote-section or `1` for chapter-endnotes. We are going to use a macro with a
+counter to generate consecutively numbered IDs. First, set the counter to 1 with
+kbd:[C-x] kbd:[C-k] kbd:[C-c] `1`. Then, record this macro:
`` kbd:[C-x] kbd:[C-k] kbd:[] kbd:[C-u] `-1` kbd:[C-x] kbd:[C-k]
-kbd:[C-a] `` kbd:[]
-`
` kbd:[] kbd:[] kbd:[]
+kbd:[C-a] `` kbd:[] kbd:[] kbd:[]
[NOTE]
kbd:[C-u] `-1` kbd:[C-x] kbd:[C-k] kbd:[C-a] “adds” -1 to the counter, so that
@@ -200,7 +204,8 @@ out what a key combination does.
Call the macro until every footnote is wrapped and copy them to Calibre.
-=== Add references to footnotes
+[#_add_references_to_footnotes]
+=== Add references to endnotes
The footnotes are probably superscript numbers in the PDF but normal numbers in
the EPUB right now. I found that the footnote-numbers are usually preceded by a
@@ -208,7 +213,7 @@ space and followed by a space or `<`. I use the find & replace function in
Calibre in Regex-mode to convert them to hyperlinks.
Find: `` ([0-9]{1,3})([ <])`` (note the leading space) +
-Replace: `\1\2`
+Replace: `\1\2`
Press kbd:[] to search through the text and kbd:[C-r] to replace.
@@ -225,5 +230,12 @@ Select menu:Tools[Check book] and fix the errors.
You're done! Enjoy your cleanly formatted book. 😊
+== Updates
+
+* [2021-02-21] Added ``epub:type``s to examples. See
+ link:{url-helicon-type}[Helicon Books: Footnotes in EPUB3],
+ link:{url-epub-spec}#sec-epub-type-attribute[the EPUB specification] and
+ link:{url-ap-semantics}[AccessiblePublishing: EPUB Semantics, ARIA Roles, &
+ Metadata] for more information.
// LocalWords: Calibre