Version: 7.6.6.3 (X86_64) / LibreOffice Community
Build ID: 60(Build:3)
CPU threads: 4; OS: Linux 6.8; UI render: default; VCL: gtk3
Locale: id-ID (en_US.UTF-8); UI: en-US
7.6.6-2
Calc: threaded
sample pdf: 11.68 MB file on MEGA
password: ACRE152
Version incompatibility.
incorrect file version.
What do you want to do? Draw is not a PDF viewer. It can handle in a somehow limited way PDFs, considering them as a collection of graphical shapes but Draw is not equipped with all PDF viewer features.
From your LO version, I assume you’re under Linux (but which distro and which desktop?). There are many PDF viewers available under the various desktops: Evince (GNOME and derivatives), Atril (MATE), Okular (KDE Plasma), Xpdf (X-Windows), Qpdfview, ePDF and many others, among which Acrobat Reader.
You didn’t mention what you want to do with the PDF document. If you only want to display it, use a PDF viewer. If you want to edit it, most PDF viewers allow that. And if you really insist on manipulating it in Draw, find a way to save it without password.