TIFF is a commonly used format for various imaging applications, including those that scan and fax. Microsoft Office Document Imaging uses the TIFF format, utilizing the format's capability to contain text recognized by optical character recognition (OCR) (OCR: Translates images of text, such as scanned documents, into actual text characters. Also known as text recognition.). When you scan new documents, they are saved in TIFF format (with a .tif extension), and any OCR text is stored in the TIFF file along with the image.
You can open and edit TIFF files created with Office Document Imaging by using many other graphics applications. When you do so, any OCR text that the file contains is lost. You will have to rerun OCR if you want to access the text in the TIFF file again in Office Document Imaging.
Office Document Imaging creates files in these formats:
- Monochrome One bit per pixel, G4 compression
- Grayscale 8 bits per pixel, JPEG compression
- Color 24 bits RGB, JPEG compression
Office Document Imaging supports:
- All compression types listed in the TIFF 6.0 specification.
- Different compression types for each page of a multi-page document.
- TIFF images with 1-bit, 4-bit, 8-bit, or 24-bit color depth (both palette and non-palette).
- RGB and CMYK color spaces.
- Tiled images.
Office Document Imaging does not support:
- YCbCr color space, except when the image is JPEG.
- CIE Lab color space.
- Images with more than five samples per pixel, or a sample size larger than 32 bits.
- Images in Planar format.