Figures and tables
Supply original, legible artwork that editors can assess and production can reproduce.
One separate file per figure
Declare the number of figures in your submission, including zero. Upload each complete figure as its own numbered PNG, JPEG or vector PDF file. Combine panels into one figure and label them consistently. Enter a descriptive legend and the intended printed width in the portal; keep figure legends in the manuscript too.
Use original-resolution images. Aim for at least 300 dpi at the intended publication size for photographs, and use vector artwork for plots, diagrams and line art when possible. Do not upscale a low-resolution image or use screenshots of charts. Export plots with embedded fonts, clear axis labels and readable units. The current upload limit is 25 MB per file and 30 files per submitted version, including the required documents.
Integrity and accessibility
Disclose any AI assistance affecting figures. Explain image processing and preserve the underlying original files. Do not selectively enhance, erase or fabricate data. De-identify patient information before upload and obtain the required consent. Use distinguishable symbols and labels alongside colour, and avoid colour combinations that obscure interpretation.
Tables and source data
Keep tables editable in the manuscript or upload them separately as DOCX, with numbered titles, units, denominators and explanatory footnotes. Provide underlying de-identified data or a justified availability statement. The editorial office may request original artwork or an alternative production format after acceptance.
Checks and review
The submission portal verifies the declared figure count, consecutive figure numbers and legends before receiving a version. Pixel dimensions, effective resolution and integrity concerns require editorial review. Automated suggestions do not change your files or substitute for scientific assessment.