PDF complex header/footer design

[rjwse@aol.com]

Here is code for EPUB to PDF conversion to make a one-line footer with Left, Center, and Right. The Left and Right swap places for odd and even numbered pages. In this example there is a 'dummy' section that is blank, but anything such as _AUTHOR_ could be added.

<footer>
<div class='odd-page' style='width:20%'>_PAGENUM_</div>
<div class='odd-page' style='text-align:center; width:60%'> <b>_SECTION_</b></div>
<div class='odd-page' style='width:20%'>*</div>
<div class='even-page' style='width:20%'>*</div>
<div class='even-page' style='text-align:center; width:60%;'> <b>_SECTION_</b></div>
<div class='even-page' style='width:20%'>_PAGENUM_</div>
</footer>

I tried making a snippet for this, but snippets don't work on this footer input line in the converter. You can store it as a non-functioning snippet which you use via copy and paste. You can store this code elsewhere, then copy and paste it into the footer input line. Alternately, you can use .XCompose which works everywhere. The .XCompose line for this is:

<Multi_key> <f><f>:"<footer><div class='odd-page' style='width:20%'>_PAGENUM_</div><div class='odd-page' style='text-align:center; width:60%'> <b>_SECTION_</b></div><div class='odd-page' style='width:20%'></div><div class='even-page' style='width:20%'></div><div class='even-page' style='text-align:center; width:60%;'> <b>_SECTION_</b></div><div class='even-page' style='text-align:right; width:20%'>_PAGENUM_</div></footer>"

So, all you need to do is go to the footer input line, then Ctrl_r, f, f. Hope this is useful for someone. If anyone can simplify the code I would be happy to see it. I cannot offer food, but you would have my undining gratitude.
Best regards, Pop

[rjwse@aol.com]

here is example of output

[rjwse@aol.com]

<script>document.currentScript.parentNode.querySel ector("div").innerHTML = "" + (_PAGENUM_ + 3)</script>

<footer>
<div class='odd-page' style='width:10%'>_PAGENUM_</div>
<div class='odd-page' style='text-align:center; width:80%'> <b>_SECTION_</b></div>
<div class='odd-page' style='width:10%'>*</div>
<div class='even-page' style='width:10%'>*</div>
<div class='even-page' style='text-align:center; width:80%;'> <b>_SECTION_</b></div>
<div class='even-page' style='text-align:right; width:10%'>_PAGENUM_</div>
</footer>

looking for help, please, for being able to combine 'start at' script with the above '3 element, alternating even/odd' footer. I tried various combinations of inclusion of the style, but it always stalls out. I tried a kazillion different combos, but I'm not adept at coding beyond css. In advance, thanks, Pop

[kovidgoyal]

<footer>
<div class='odd-page' style='width:10%' id='footer-pagenum'>_PAGENUM_</div>
<div class='odd-page' style='text-align:center; width:80%'> <b>_SECTION_</b></div>
<div class='odd-page' style='width:10%'>*</div>
<div class='even-page' style='width:10%'>*</div>
<div class='even-page' style='text-align:center; width:80%;'> <b>_SECTION_</b></div>
<div class='even-page' style='text-align:right; width:10%'>_PAGENUM_</div>
<script>document.currentScript.parentNode.querySelector("div#footer-pagenum").innerHTML = "" + (_PAGENUM_ + 3)</script>
</footer>

[rjwse@aol.com]

Thanks for this code, but I already tried this and it only picks up odd-page. The odd-page is correctly incremented, but the even-page stays the same. I tried this via using unique classes also. It always picks up the first thing mentioned so I tried using || and so forth. It is tricky. I tried using two scripts, too. So far, no cigar.

[kovidgoyal]

<footer>
<div class='odd-page pagenum' style='width:10%'>_PAGENUM_</div>
<div class='odd-page' style='text-align:center; width:80%'> <b>_SECTION_</b></div>
<div class='odd-page' style='width:10%'>*</div>
<div class='even-page' style='width:10%'>*</div>
<div class='even-page' style='text-align:center; width:80%;'> <b>_SECTION_</b></div>
<div class='even-page pagenum' style='text-align:right; width:10%'>_PAGENUM_</div>
<script>document.currentScript.parentNode.querySelectorAll("div.pagenum").forEach((x) => { x.innerHTML = "" + (_PAGENUM_ + 3);})</script>
</footer>

[rjwse@aol.com]

That did it! I cannot thank you enough. I 'see' the 'for each' and why this works. Warmest regards and Happy Holidays, Pop