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#1 Posted : Thursday, December 12, 2019 4:02:01 PM(UTC)

Robbey  
Robbey

Groups: Registered, Tech Support, Administrators
Posts: 22


Warning!

This will encrypt PDF files with RC 128 bit encryption using the password you specify. If you forget the password, then you lose your PDF file.

Do not forget the password.

This sample application demonstrates how to use the LEADTOOLS PDFFile class to add a user password to a PDF file.

To register this project into Windows Explorer as a context menu item for PDF files, run it with the -register parameter. To unregister, run with the -unregister parameter.

The full path and file name is passed to the application as a parameter. The code checks the file to see if it is already encrypted. If it is, the user is prompted for the current password. Then the user is prompted for a new password. If the new password is blank, then the resulting file will not be encrypted, removing the previous password if there was one.

File Attachment(s):
demo-cs-pdf-encrypter.zip (27kb) downloaded 9 time(s).

Edited by user Friday, January 17, 2020 1:04:47 PM(UTC)  | Reason: Not specified

Robbey Rodriguez
Developer Support Engineer
LEAD Technologies, Inc.
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Try the latest version of LEADTOOLS for free for 60 days by downloading the evaluation: https://www.leadtools.com/downloads

Wanna join the discussion? Login to your LEADTOOLS Support accountor Register a new forum account.

#2 Posted : Wednesday, March 25, 2020 12:52:20 PM(UTC)
Luke Duvall

Groups: Registered, Tech Support, Administrators
Posts: 34


Make sure to read Warning above

Updated project to LEADTOOLS Version 20 using Visual Studio 2019

File Attachment(s):
demo-cs-pdf-encrypter.zip (27kb) downloaded 7 time(s).
Luke Duvall
Developer Support Engineer
LEAD Technologies, Inc.
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