Enhancing the Security of Electronic Files
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Electronic files are vulnerable to security threats, such as those of files being viewed easily and tampered without leaving any traces. When scanning important papers, you can enhance the security of the files by encrypting or adding a digital signature to them.
For information on the optional products required to use this function and the file formats, see System Options.
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To use these functionsSome options need to be installed in the machine. System Options
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Only PDF files can be encrypted.
PDF and XPS files can have digital signatures.
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Performing Encryption
Setting a password when scanning an original enables PDF files to be encrypted for sending/saving. This helps reduce the risk of the files being viewed or edited by others.
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To use this functionSet <Format PDF to PDF/A> to <Off>. <Format PDF to PDF/A>
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Place the original. Placing Originals
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Press <Scan and Send> on the Main Menu. <Main Menu> Screen
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Specify the destination on the Scan Basic Features screen. Scan Basic Features Screen
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Press the setting button for file format.
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Press <PDF> 
<Encrypt>.
<Encrypt>.6
Set the password and press <OK>.
<Encryption Level>Select a version of Adobe Acrobat.
<Password Required to Open Document>Enables you to set the password that is required when opening the file. Press <Password Required to Open Document> <Password to Open Doc.> to enter the password.
<Password to Open Doc.> to enter the password.
<Password Required to Change Permission>Enables you to set the password that is required when printing the file or editing the file, such as deleting pages, as well as to specify the operations that are allowed. Press <Password Required to Change Permission> <Permission Password> to enter the password, and then specify the operations to be permitted.
<Permission Password> to enter the password, and then specify the operations to be permitted.For <Allow Printing> or <Allow Changes>, specify the operations that are allowed when printing/editing the file.
Pressing to add a check mark to <Enable Copying and Extraction of Images/Text> allows for copying and extracting the images or text in files.
Pressing to add a check mark to <Enable Access for the Visually Impaired> activates the function for reading aloud text inside a document.
If you are logging in to the machine with personal authentication management (Managing Users), the <Store Password> button is displayed. Pressing this button saves the passwords you entered so that you can eliminate the need to enter passwords for the next setting.
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Press 
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.Originals are scanned and sending/saving starts.
Adding a Digital Signature
You can convert scanned originals into PDF/XPS files with a digital signature. A digital signature is similar to the act of signing and sealing papers, which enables you to check who created the file and if the file was tampered or forged after it was signed. For detailed information about a digital signature and its settings, see Adding a Digital Signature to Sent Files.
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Place the original. Placing Originals
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Press <Scan and Send> on the Main Menu. <Main Menu> Screen
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Specify the destination on the Scan Basic Features screen. Scan Basic Features Screen
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Press the setting button for file format.
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Press <PDF> or <XPS> <Add Digital Signatures>.
<Add Digital Signatures>.If you do not log in to the machine with personal authentication management and select <XPS>, press <Add Device Signature>.
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Select the digital signature and press <OK>.
<Device Signature>The name of the machine is added to the file as a signature. The reader can verify that the file is scanned from the machine.
<User Signature>The name of the user who logs in to the machine with personal authentication management is added to the file as a signature. The reader can verify that the file is scanned by the user.
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Press .
.Originals are scanned and sending/saving starts.
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Making a digital signature recognized at a glance by the reader (visible signature) (only for a PDF file)Pressing <Visible Signatures> makes the signature appear on the first page of the file, enabling the reader to check at a glance who created the file.
When using together with PDF file encryptionIf you want to set a password for <Password Required to Change Permission> when encrypting a PDF file, select <Changes but Extract Pages> for <Allow Changes>. Performing Encryption
Setting S/MIME enables you to send an e-mail with a digital signature as well as encryption. <S/MIME Settings>
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