PaperFig started from a simple observation: Reactor and device schematics in energy papers usually start as rough sketches that stay rough. It is an AI tool for drafting scientific figures. You can begin with a plain-language description, a hand sketch, a photo, a reference figure, or a PDF. It is aimed at the figures papers actually need: mechanisms, workflows and graphical abstracts. The free plan gives a watermarked PNG, and subscribers get TIFF/PDF export plus a 4K upscale for final submission images. If you are one of the energy researchers showing reactors, membranes or device architecture, it is a reasonable first stop. People use it to draft figures for manuscripts, build graphical abstracts, prepare grant diagrams, and make slides for lab meetings. It gives you a draft to review, not a finished submission, so check the details against your journal’s guidelines.
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