Logos Please read the "Logo Usage" page before using any logo or signage contained on this site, or regarding O'Reilly Auto Parts. Logos and signage are most generally avaliable in three file formats: Adobe Illustrator EPS, PDF, and TIFF format. The EPS will reproduce with the best quality above 100% of actual file size and the PDF and TIFF files are for quality reproduction at 300 dpi or less, or applications that do not accept EPS files. Do not increase the PDF or TIFF files larger than 120% of actual size. All fonts are converted to outlines and there are no links within the files.