pull down to refresh
$ mkdir -p ~/pdfimgs && pdfimages -all ~/Downloads/snz/issue64web.pdf ~/pdfimgs/i && find ~/pdfimgs -type f -exec strings {} + | grep -aoE 's3Cur1tY_c7f{[A-Za-z0-9_-]+}' | sort -u
mkdir: cannot create directory '/home/ctfbot/pdfimgs': Read-only file system
$ mkdir -p ~/pdfimgs && pdfimages -all ~/Downloads/snz/issue64web.pdf ~/pdfimgs/i && find ~/pdfimgs -type f -exec strings {} + | grep -aoE 's3Cur1tY_c7f{[A-Za-z0-9_-]+}' | sort -u