Scanning Help - File Formats
What file formats are best to use?
There are many different file formats that can be used to store image data. Some of them are very high quality yet very large, while others may be small but compromise quality. Which format you use will be dependent on what your image looks like, how much quality you need and how much space you have to store it in. The matrix here delineates some of the strengths and weaknesses of a few of the more common formats.
|Format ||File Extension ||Color Depth ||Quality ||Size ||Remarks|
|Tiff ||.TIF ||24 bit ||Excellent ||Very Large ||Good for line art and drawings|
|Jpeg ||.JPG ||24 bit ||Very Good ||Medium ||Good for photographs|
|GIF ||.GIF ||8 bit ||OK ||Very Small ||Good for small WWW graphics|
|Pict ||.PCT ||24 bit ||Very Good ||Medium ||Apple Standard, not as compatible|
|Bitmap ||.BMP ||24 bit ||Very Good ||Medium ||Windows Standard, not as compatible|
|Photoshop ||.PSD ||24 bit ||Excellent ||Varies ||Proprietary technologies like layers, actions, channels, transparency, but not compatible with most viewers.|
Generally, the Tiff format is best for use with line art or drawings where image quality is key and uncompromisable. Jpeg is best for working with photographs, where a little bit of loss in color quality, but not too much, is acceptable and not noticable.