[Time Stamp] Tab


With the [Time Stamp] tab in the SkyPDF Pro Driver print settings, you can assign a time stamp to the output PDF by checking the [Add Time Stamp] checkbox.

Time Stamp can secure the credibility of electronic data and complement the limitations of digital signatures with the following two effects.
Existence Proof: The Time Stamp can prove that the data actually existed at the time when Time Stamp was granted.
Integrity Proof: The Time Stamp can prove that the data has not been falsified since the time when Time Stamp was granted.

Note

Settings

License Set up the license file and its password.
File This is the path to the license file (*.atl) for “Amano Time Stamp Service 3161” distributed by AMANO Secure Japan Corporation.
Password Enter the password for the Time Stamp License file.
Confirmation Click "Confirmation" to verify if the password is valid.
Server Setting the URL of the timestamp server and the connection timeout period.
Saver name The URL of the timestamp server.
Normally, the default (http://tss3161.e-timing.ne.jp/astdtssvr/TSRequest) can be used.
Time out Timeout period (in seconds) for connecting to the time stamp server.
  • Default value of 5 seconds is set for 0.
Proxy If "Use system proxy settings" is checked, the proxy settings configured in the system will be valid. 
Set the System log If "Use system proxy settings" is checked, the proxy settings configured in the system will be valid. 
When an error occurred If the Record box is checked and a path is entered, the system log will be outputted. If an incorrect path is entered, the system log will not be outputted. 

Detail

You can change settings related to the imprint, verification, and date/time format of time stamps.

Stamp image selection Select the imprint of the time stamp to be assigned to the PDF.
  • Invisiblity
  • The circular type
  • The corner type
Penetrate to background color

When the checkbox is checked, the background of the imprint is made transparent so that the document can be read when the imprint is placed on the document.

  • OFF
  • ON
Translucence to stamp face When the checkbox is checked, the imprint can be made translucent.
Visible mark Detail Settings related to the additional position of the imprint and whether or not it is linked.
Page Specify the page number to which the imprint is to be added and its position in terms of the amount of movement (in mm) in relation to the upper left corner of the page.
Set reverse order When the checkbox is checked, the page number specified in [Page] is counted as the number of pages from the last page.
Time Stamp Inspection Setting for whether PDFs are verified when assigning a time stamp.
When performing verification, a certificate must be installed.
If verification is performed and an invalid result or processing error is detected, a time stamp will not be assigned.
  1. <Verification Details>
  2. TSA certificate included in time stamp
  3. TSA certificate’s root CA certificate
  4. CRL
  5. CRL root CA certificate
Inspect All <Verification Details> Perform verifications 1 through 4, and assign a time stamp only if all results are normal.
Inspect anything other than TSA certificate revocation <Verification Details> Perform verifications 1 and 2, and assign a time stamp only if the results are normal.
Inspect only using TSA certificate <Verification Details> Perform verification 1, and assign a time stamp only if the results are normal.
Do not inspect Assigns a time stamp without verification.
Date and time format selection Date and time format of the time stamp’s added date and time to be displayed on the imprint.
Date format Select from the pulldown menu.
  • The date of the setting item, for example purposes, is the date at the moment the dialog is opened. The actual date will be the date at the moment the time stamp is added.
Time format Select from the pulldown menu.
  • The time of the setting item, for example purposes, is the time at the moment the dialog is opened. The actual time will be the time at the moment the time stamp is added.
Timezone Setting Time zone of the time stamp’s added date and time to be displayed on the imprint.
Abbreviation Displays the abbreviation of the selected time zone on the time stamp.
Time lag of UTC Explicitly sets the time difference from UTC (universal time used for recording time).

Installing the CA Certificate

When verifying the timestamp, please follow these steps to install the certificates:

  1. Download all of the certificates listed below:
  2. Run the downloaded certificate files individually.
  3. If a security warning appears, click [Open] to proceed.
  4. Click [Install Certificate].
  5. Click [Next].
  6. Select [Place all certificates in the following store], and then Click [Browse].
  7. For the Root CA certificate (SCRoot3ca.cer), select the [Trusted Root Certification Authorities] store.
    For the Intermediate CA certificate (ca3-der.cer or ca3.cer), select the [Intermediate Certification Authorities] store, and then click [OK.]
  8. Click [Next].
  9. Click [Finish], and then select OK to confirm that the import was successful.
  10. Once you have successfully imported all downloaded certificates, the process is complete.