Smallpdf - PDF document management and conversion suite
Raspberry Pi - The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
iLovePDF - Free online PDF tool set
Microbit - BBC's handheld, programmable computer given free to UK kids
Kingshiper Image Compressor - With Kingshiper Image Compressor, you can easily compress, optimize and reduce jpg, jpeg, png, svg and gif file to a smaller size in seconds.
OLinuXino - Open Source Software and Open Source Hardware, low cost Linux Industrial grade single board...