![background image](http://html.mh-extra.com/html/canon/dr-7090c-imageformula-document-scanner/dr-7090c-imageformula-document-scanner_user-manual_57072117.webp)
9-8
Chapter 9 Job Registration Tool Settings
IMPORTANT
The Compression rate setting is enabled when the scanner is
set to [256-level Gray] or [24-bit Color] mode. When [Black and
White] or [Error Diffusion] binary image scanning mode is
selected, file size depends on the content of the scanned
document.
Language for OCR
When the [Apply OCR] check box is selected, the target
language for OCR can be selected in the list box.
Characters within document images are recognized as text
and saved as appended text data in PDF (*pdf) files.
■
Settings of [TIFF setting] Dialog Box
You can configure the following settings in the [TIFF
setting] dialog box.
Multi-tiff setting
Select the method for saving image files when scanning
multi-page documents.
Hint
• Select [Single page] to save each page as one image file.
• Select [Multi-page] to save all pages as one image file.
[Compression] Check Box
Select this check box to compress images saved to files.
Black and white (binary) images are compressed in CCITT
Group 4 format, and grayscale and color images in JPEG
format. When this check box is not selected, the saved files
are much larger.
Hint
• CCITT Group 4 is a compression format designed for data
communications (such as with fax devices) of black and white
(binary) images.
• JPEG is a compression format for saving grayscale and color
images. When the [Compression] check box is selected, a
standard level of JPEG compression is applied.
Hint
If your application program does not support the above
compression formats, you may be unable to open scanned
image files. In this case, disable [Compression] when scanning.
■
Settings of [JPEG File Setting] Dialog Box
You can configure the following settings in the [JPEG File
Setting] dialog box.
Quality
Select the image quality for JPEG files.
Hint
• Select [High Quality] to save files with high quality. Although
image quality is high, the file size becomes larger.
• Select [Standard] to save files with normal compression.
• Select [High Compression] to save files with high
compression. Although the file size is reduced, image quality
may be slightly degraded.
• Select [User settings] to enable the slider and set the quality
manually.