Epson Expression 636 User Manual - TWAIN 32 - Page 110

File compression software, but the restored file is not exactly the same as the original.

Page 110 highlights

File compression software Many different programs are available to make image files smaller for storage or transmission. For example, they can enable you to store a 3MB image file on a floppy disk. Some compression software can compress images and restore them with no loss of data or quality; others compress images more, but the restored file is not exactly the same as the original. The difference between the original and restored files is, however, not always noticeable. B-20 Expression 636 Scanner Settings

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B-20
Expression 636 Scanner Settings
File compression software
Many different programs are available to make image files
smaller for storage or transmission. For example, they can enable
you to store a 3MB image file on a floppy disk. Some
compression software can compress images and restore them
with no loss of data or quality; others compress images more,
but the restored file is not exactly the same as the original. The
difference between the original and restored files is, however,
not always noticeable.