Canon PIXMA MG2440 - Manual (Page 272)

Important
The following types of images may not be corrected properly since the text cannot
be detected correctly.
Images in which the text lines are inclined more than 10 degrees or the angles
vary by line
Images containing both vertical and horizontal text
Images with extremely large or small fonts
Images with small amount of text
Images containing figures/images
Hand-written image
PDF Compression
Select a compression type for saving.
Standard
It is recommended that you normally select this setting.
High
Compresses the file size when saving. You can reduce the load on your network/
server.
Important
PDF images may degrade if you repeatedly save them with high compression.
Related Topic
Save Dialog (Scan View)
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