PDFTron SDK Demo -5 minute overview- View PDF, MS Office, images, customization, redaction, editing 

Hello Diego, files can be opened from a URL or a presigned URL or token, base64, blob, File, etc. www.pdftron.com/documentation/web/guides/basics/open/url/

Hello, you can listen for searchListener and call your function with search result parameters: www.pdftron.com/api/web/UI.html#.searchListener www.pdftron.com/documentation/web/guides/text-search/

Yes, we can do! Loop over the annotations using annotationManager and you can get the contents property that would include the text on the annot.

If you have more questions, post them on community.PDFTron.com and we will get back to you or message support@pdftron.com for more private support.