Fujitsu Fi-5110EOX2 - ScanSnap! - Document Scanner Operator's Manual page 108

2. Select the [Compression] tab and select the "Enable High Compression" check box.
ATTENTION
3. Click the [OK] button to close the window.
⇒
The setting is enabled from next scanning
ATTENTION
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This function is available only for saving images in PDF format. Make sure that
"PDF(*.pdf)" is selected at [File format:].
•
This function compresses characters and backgrounds on the document
separately. So using this function on documents containing mostly text
characters, the file size becomes smaller while leaving the characters quality
as they are. Meanwhile, this function is not appropriate for scanning photo-
graphs or figures, because such drawings are recognized as background and
compressed as such, so the qualities of such images will deteriorate.
•
When this function is enabled, "Compression rate:" setting under
[Compression] tab is disabled.