Good and efficent flie save and export to vector file format PDF, SVG or EPS?

Hello,

Tried ofBook: Vector Graphics: Taking a Snapshot (Part 2) using ofBeginSaveScreenAsPDF(), but getting a PDF file that contains only wireframes, no fill colors, no transparency this is the warning message:

[warning] ofCairoRenderer: draw(): cairo mesh rendering doesn’t support colors, textures, or normals. drawing wireframe …

Any idea or advice for a good and efficient addon or method for vector file format export as PDF, SVG or EPS, please?