customizing when it comes to zooming a specific pdf file in linux

[SehyunPark]

<What went wrong? (add screenshot)>

When browsing the pdf file using pdf.js viewer, I found out that when it comes to zooming,
there are the selected options (e.g 50%, 75%, 100%, etc).
how can I zoom in the file while using customized zooming version? (e,g 53% 20%)

<What is the expected behavior?>
There are no personally customized zooming options
Using the customized option , it would be much helpful for the ones who want to see the pdf file based on what they want to see the slide with the size they need

pdf-options

[Snuffleupagus]

If you need a specific zoom level, the easiest solution is to append e.g. #zoom=20 (or whatever value you need) to the URL; please see https://github.com/mozilla/pdf.js/wiki/Viewer-options for additional details.

[SehyunPark]

Thanks for the reply, and after entering (e.g 17%) in URL, it works.

[SehyunPark]

and after giving several tries, found out the file is zoomed with the %(up to second decimal place)
(e.g #zoom = 80.50923 -> 80.51%; as shown above)