Description: HTML2PDF is an open-source PHP class that allows you to generate PDF files from HTML code. It supports HTML5 and CSS3, is lightweight, and can handle complex layouts and Unicode.
Type: software
Pricing: Open Source
Description: IOsymbols.com is a free online schematic and wiring diagram drawing software. It allows users to easily create electrical and electronic circuit diagrams with common symbols and components.
Type: software
Pricing: Free