Inkscape

Inkscape is a professional vector image editing tool. For designers, etc., Inkscape can help you transform immature material (a piece of graffiti, photo, sketch, etc.) into professional design. The resulting pictures can be used for advertising, model making, poster making, business card making, etc.; for academic research, it is usually used for post-editing of high-quality paper drawings for article publication. The common input format supported by Inkscape is SVG, but you can also input AI (Adobe Illustrator), PDF and other formats. Inkscape supports multiple export formats: SVG, PNG (used to obtain high-quality paper published pictures) and other formats.