Scientific figures play a crucial role in conveying experimental results, analytical trends, and conceptual frameworks. While modern tools enable easy figure creation, improper resolution and scaling remain common issues during manuscript submission. Journals typically mandate strict image quality requirements to ensure clarity after printing and archiving. DPI (dots per inch) is one of the most frequently misunderstood parameters, often leading authors to submit figures that appear acceptable on-screen but fail to meet print standards.
This manuscript provides a structured overview of DPI calculation, recommended pixel dimensions, and practical considerations for preparing figures that meet editorial requirements.