How do you get the search icon / search button to show up??

[katcaola]

In the linked demo on the PDF.js readme.md ( https://mozilla.github.io/pdf.js/web/viewer.html ) there is the ability to search the PDF.

However, when I download the PDF from the demo, then open it locally on my machine in Firefox v.141.0.2 (64-bit) for Intel based Mac ( Sequoia 15.5 ), I do not get the search button. Note I am using just my browser, not any built/edited version of PDF.js (I read from the docs that Firefox uses PDF.js as the default PDF viewer).

Does the PDF need to be embedded with certain options like OCR or something like that?

Or is search not available as a full feature, but only in the demo?

Is there a browser setting I need to turn on to be able to search?

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