Nuance scansoft omnipage pro 14 User Manual

Page of 124
 Chapter 7
Supported file types
115
Supported file types
The program supports a wide range of file types for images and text.
File types for opening and saving images
Input image files can have resolutions from 75 to 600 dpi, but 300 dpi 
(both horizontally and vertically) is recommended for optimum OCR 
accuracy. The minimum image size is 50 pixels on any side. The 
maximums are 28 inches (71 cm) and 8400 pixels (but less for color or 
grayscale images with resolutions below 200 dpi. See online Help.)
Black-and-white images enter the program at their original resolutions. 
Use the Process panel of the Options dialog box to choose whether to 
import grayscale and color images at their original resolutions or have 
those above 150 dpi reduced to 75-150 dpi. That means these are not 
good candidates for future OCR processing. You can control resolution 
for saving page images and for embedded pictures at saving time.
Hover the cursor over a page image or its thumbnail to see a popup 
window showing its size and resolution. Show or hide this display with 
the Image Panel’s shortcut menu.
File type
Extension
Multi-
page
Open / Save
B/W, Grayscale, 
Color
BMP, Bitmap
bmp
No
Open and Save
All
DCX
dcx
Yes
Open and Save
All
GIF 
gif
No
Open and Save
All
JPEG
jpg
No
Open and Save
Grayscale, color
MAX
max
Yes
Open and Save
All
PCX
pcx
No
Open and Save
All
PDF: Image only
pdf
Yes
Open and Save
All
PDF: All other types
pdf
Yes
Open  (see note)
All
PNG
png
No
Open and Save
All
TIFF Compressed G3
tif
Yes
Open and Save
B/W
TIFF Compressed G4
tif
Yes
Open and Save
B/W
TIFF Compressed LZW
tif
Yes
Open and Save
All
XIFF (TIFF FX)
xif
Yes
Open
All
TIFF PackBits
tif
Yes
Open and Save
All
TIFF Uncompressed
tif
Yes
Open and Save
All