- aleatorius.livejournal.com 2955188.html...remembereverything.org/manage-pdf-highlights-annotations/ (описание того, как можно это делать) http...
- twitter.com TechTudo/status/1449951649984745475Como assinar PDF online com o Small PDF https://techtudo.com.br/dicas-e-tutoriais/2021/10/como-assinar-pdf-online-com-o-small-pdf.ghtml?utm_source=twitter...