Xpdf-tools-win-4.04 Info
pdftopng -r 150 input.pdf page
pdffonts input.pdf
Helps check if a PDF uses unembedded fonts.
First Test
Open a Command Prompt or PowerShell window and run: xpdf-tools-win-4.04
pdfinfo.exe sample.pdf
If you see metadata and page count, everything works. pdftopng -r 150 input