At the top of the PDF, click on "Menu"... in the drop down look for undo, redo and "more"... in the pop up menu look for "capture a snapshot", this will allow you to select with the mouse/pointer a page or part of it... right click on the selected area and select copy... it will be copied to the clipboard.
Now is when you open Paint to paste what you copied to the clipboard. Now you can save and rename the image with the "original quality".
The way PDFs are viewed has recently been updated (for the worse, as always), so there may be slight differences in the snapshot capture procedure.
Personal opinion on the format of these small programs: all updates whose format ends up taking the form of menus for Smartphone are a big s**t. (W11?

)
I must remember that the use of the Smartphone seriously damages the intellectual and cognitive abilities of human beings.
The greater the use of the Smartphone, the greater the slavery for humanity... the tyrants
will steal your existence/life.
