94
Technical information
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 up to 600 dpi, but 300 dpi (both
horizontally and vertically) is recommended for optimum OCR accuracy.
The program stores black-and-white images at their original resolution,
but grayscale and color images are not usually saved above 150 dpi. That
means these are not good candidates for future OCR processing.
Hover the cursor over a page thumbnail for a popup window showing the
size and resolution of the original image.
If you try to save a black-and-white image to JPEG format, the program will offer
conversion to grayscale. With TIFF G3 and G4 it will offer conversion to black-
and-white.
Saving to PDF format is supported, with five options. Two of these,
Image only
and
Image on text
, export original images. This is done in the Save As dialog box
for recognized pages. See “Saving to PDF” on page 84.
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
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
TIFF FX
xif
Yes
Open
All
TIFF PackBits
tif
Yes
Open and Save
All
TIFF Uncompressed
tif
Yes
Open and Save
All
Содержание OmniPage PRO 12
Страница 1: ......