Bitmaps are images made up from countless numbers of dots arranged side by side to make up an image.
The quality of the image is determined by the amount of dots mapped. Often web based images even though they look high quality on screen have a low resolution of 72 dpi (Dots per Inch) where usually what is required is 300 dpi at the actual size that is to be printed. You should consider also with bitmap images, as you enlarge the graphic the dots or pixels become larger therefore reducing the resolution.
Low resolution artwork
High resolution artwork
Bitmaps come in the form of several file types. Typically these can be JPG, TIFF, BMP & EPS. Bitmap files are required for Embroidery, Sublimation & Digital Printing & Transfers. Please note that these file types can be quite large and cannot be transported by email. As a general rule you should not try to send more than a 4mg file within any one email.
Bitmap Artwork Specifications
File Types: EPS, JPG, BMP, TIFF, PDF at 300dpi at 100% size.
Greyscale or CMYK