Large Print Generator

Who This Tool Is Designed For

Large print materials serve individuals with low vision, a condition affecting a substantial portion of the global population. According to the WHO World Report on Vision (2019), at least 2.2 billion people worldwide have a near or distance vision impairment. The National Eye Institute (NEI) reports that low vision is a growing concern in the United States, with prevalence increasing due to population ageing and the rising incidence of age-related eye conditions (macular degeneration, glaucoma, diabetic retinopathy, cataracts). Large print is also beneficial for individuals with certain cognitive or neurological conditions that affect visual processing.

Research Citations

• American Printing House for the Blind (APH). "Guidelines for Large Print." · Defines large print as a minimum of 18-point type and recommends sans-serif fonts with adequate line spacing for readability.
• Royal National Institute of Blind People (RNIB). "Creating Clear Print and Large Print Documents." · Recommends 16–22pt sans-serif type, 1.5× line spacing minimum, left-aligned text, and high contrast (dark text on light background).
• Arditi, A. (2004). "Adjustable typography: an approach to enhancing low vision text accessibility." Ergonomics, 47(5), 469–482. · Found that user-adjustable font size, spacing, and contrast significantly improved reading speed and comfort for low vision readers.
• Legge, G.E. & Bigelow, C.A. (2011). "Does print size matter for reading? A review of findings from vision science and typography." Journal of Vision, 11(5), 8. · Established that critical print size (the smallest size allowing maximum reading speed) is approximately 0.2° of visual angle, which for a typical reading distance equates to roughly 16–18pt.
• World Health Organization (2019). World Report on Vision. · Reports that at least 2.2 billion people globally have a vision impairment, of whom at least 1 billion have a condition that could have been prevented or has yet to be addressed.

Disclaimer

This tool generates large-format text based on published typographic standards for low vision readers. It does not diagnose or treat any visual impairment. The effectiveness of large print varies depending on the individual's specific condition and remaining vision. Users with low vision should consult a qualified vision specialist (e.g., ophthalmologist, optometrist, low vision rehabilitation specialist) for personalised assessment and recommendation.