Highlight color
Open a terminal and enter this command at your project's root folder: ng add ngx-extended-pdf-viewer This configures your project, adds an example component and an example PDF file, so you just need to add the new <add-example-pdf-viewer> tag to one of your *.html files.
<ngx-extended-pdf-viewer
[src]="'/assets/pdfs/The Public Domain - Enclosing the Commons of the Mind.pdf'"
[height]="'auto'" <!-- you can also use %, px and vh, or omit the attribute altogether -->
[textLayer]="true" <!-- enable the find button -->
[showHandToolButton]="true" <!-- enable text selection -->
[filenameForDownload]="'Public Domain.pdf'"> <!-- optional - define the filename if the user downloads the PDF -->
</ngx-extended-pdf-viewer>