Free PDF to Diagram AI for Papers and Grant Proposals

SciFig uses the content of the PDF you upload together with the instruction you type, then creates a new diagram from that combination. The instruction matters most: this PDF to diagram AI works best when you name the section, process, or argument to depict and the audience the figure is for, rather than asking it to summarize the whole document at once.

In SciFig, name the section heading and the specific idea in your instruction, for example the study design in the Methods or the proposed mechanism in the Discussion. If the document covers many topics, you can save only the relevant pages as a smaller PDF before uploading. Files must stay under 20 MB. One focused diagram per generation is easier to read than one crowded figure.

SciFig generates a new diagram from the ideas described in your document. To convert PDF to diagram AI figures, name the section, structures, relationships and labels you want SciFig AI Illustration to show. Follow applicable permission and attribution terms for source material.

SciFig is free to start, no card required: 150 credits on day one (3 figures), daily check-in credits that grow with your streak (up to 150 a day) — up to about 44 figures in your first month. Invite a friend and you both get 200 more credits. Reference, PDF and Photo-to-Figure come with Plus and Pro plans, which let you pick any of six models, including GPT Image 2, Nano Banana Pro and GPT Image 2.5, and give you paid credits that never expire. Each PDF generation is priced at 50, 75 or 100 credits depending on the model. See the SciFig pricing page for current plan details.

SciFig AI Illustration lets you change terminology, abbreviations, units and arrow labels from your PDF through conversational edits or text editing. Convert the result to editable SVG for further text and path editing in Vector Canvas, and use SciFig DataChart (data-driven charts) to generate numerical plots precisely from your table.

For a results chart, SciFig DataChart generates the plot precisely from your original data table, with columns and statistical settings you can adjust. Use SciFig AI Illustration to create a mechanism or visual summary from the PDF, and SciFig FlowChart (flowcharts and diagrams) for a native SVG methods workflow from your steps. Export the figures for your paper, poster or slides.

They overlap. With a focused instruction, SciFig turns a paper into a graphical abstract for research paper AI workflows, but this page is built for any diagram drawn from a document, such as a mechanism, study design, or lecture concept. If your only goal is a journal-style visual summary, SciFig also offers a dedicated Graphical Abstract Maker under Tools.