1 In order to meet the Journal of Periodontology’s quality standards for publication, it is important that authors sub- mit digital art that conforms to the appropriate resolution, color mode, and file format. Doing so will help to avoid delays in publication and maximize the quality of images in both the online and print journals. General Notes: Digital files must be submitted for all figures. Submit one file per figure. Multiple panels should be labeled and combined in a single file. Photomicrographs should have internal scale markings. Human subjects must not be identifiable in photographs, unless written permission is obtained and accompanies the photograph. Lettering, arrows, or other identifying symbols should be large enough to permit reduction and must be embedded in the figure file. Figure file names must include the figure number. Clinical color photographs are encouraged. There is no charge to the author for publication of any figure. Authors are asked to use shades of green, blue, or purple in color graphs. Yellow, red, and orange should be avoided unless scientifically necessary (e.g., to depict species of the yellow complex, red complex, etc.). Authors are strongly encouraged to prepare basic, simple designs that can be clearly understood when reproduced; use of ‘‘3-dimensional’’ graphics is not recommended. Unnecessarily complex designs may be returned for simplification before publication. Sizing: Prepare figures at the final publication size; less than the length of the page (55.5 picas / 9.25” / 23.5 cm), and one of the following widths: 1 column wide (20 picas / 3.3” / 8.5 cm) 1.5 columns wide (29 picas / 4.875” / 12.3 cm) 2 columns wide (41.5 picas / 6.9” / 17.5 cm) Fonts: Please use the same font for all figures in your manuscript; use standard fonts such as Arial, Helvetica, Times, Symbol, Mathematical Pi, and European Pi. Keep the text size relatively consistent across the entire figure; do not use very large text and very small text in the same figure. Preferred text size is 6-10 points when the figure is properly sized to publication widths as described above. For vector application files, it is recommended to convert fonts to outlines (Adobe Illustrator) or to embed fonts (MS Office). See the next page for more information. Resolution and Raster Images: Low-resolution images are one of the leading causes of art resubmission and schedule delays. It is important that submitted raster images meet the minimum resolution requirements. Raster images can be classified as monochrome, halftone, or combination halftone. • Monochrome (1-bit) images*: Common examples are graphs and charts made of solid black and white, with no gray values. The preferred resolution for this type of image is between 1,000 and 1,200 pixels per inch (ppi) at publication size. The preferred file format is TIFF. EPS and PDF are also accepted. • Halftones*: Common examples are color or grayscale figures containing pictures only, with no text or thin lines. The suggested minimum resolution for this type of image is 300 ppi at publication size. The preferred file format is TIFF. EPS and PDF are also accepted. • Combination Halftones*: Common examples are color or grayscale figures containing both halftone and line art /text elements. The preferred resolution for this type of image is between 600 and 900 ppi at publication size. The preferred file format is TIFF. EPS and PDF are also accepted. *When saving these files, use only LZW compression (i.e., do not use jpeg compression). 300 ppi 600 to 900 ppi 1,000 to 1,200 ppi Monochrome Combination Halftones (grayscale or color images with text and/or line art) Halftones (grayscale or color images with no text or line art) JOURNAL OF Periodontology Digital Art Guidelines