Basic Function; Encrypted Pdf; Searchable Pdf - Canon DU7-1178-000 Service Manual

2.1 Basic Function

2.1.1 Encrypted PDF

When sending a PDF file to an e-mail address or to a file server, the file may be encrypted and a password
may be assigned to it for security. Once a password is assigned, the recipient must type in the correct pass-
word to open or print/edit the file. A PDF file may be turned into an encryption PDF file by clicking a
button in the course of making settings for transmission. For particulars of settings, see the specifications
given previously.
Caution:
The target of transmission of an encryption PDF file must be an e-mail address or a file server. For
instance, the target must not be a group of addresses that include an i-fax or Box address.
Notes:
A license key may be registered by making the following selections: Additional Functions>System
Settings>License Registration. To prevent cracking of a license key, the use of a remote user interface
is not considered.

2.1.2 Searchable PDF

A searchable PDF file consists of pages of scanned images that have been put through OCR processing.
The test data is extracted, and is laid over the original images in the form of invisible text so that a search
may be run for a particular segment of the data. A search in a PDF file requires a PDF browser application
(e.g., Adobe Acrobat, Adobe Reader). Or, Windows' search function may be used to look for a string of
characters. Here again, the target of transmission must be an e-mail address or a file server. To make use
of this function, PDF (OCR) is specified when selecting the file format on the Transmission screen. A PDF
file that will be generated in response will consist of the following:
- image block
300 x 300 dip fixed, MMR compression
- text block
Latin1, Latin2, Latin4, Greek, Russian
The character code recognized by OCR processing is determined by Additional Functions>Common Set-
tings>Langage Switch. Nevertheless, ASCII characters (English) will always be recognized regardless of
the selected language.
Caution:
The target of transmission of a searchable PDF file must be an e-mail address or a file server. In other
words, it cannot be sent if the target is a group of addresses that include a fax, i-fax, or Box address.
If the resolution (300 x 300 dpi) is changed after selecting the PDF (OCR), there will be a dialog box ask-
ing if the file format must also be changed to PDF. In other words, PDF (OCR) cannot be selected unless
the resolution is 300 x 300 dpi.
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