Email attachment encryption

Uma Suthan
Uma Suthan used Ask the Experts™
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I need to send 10-15 pdf attachments (encrypted with password protection) to client. How can I do that? What tools or software can i use so that client can open by entering the password
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Database Administrator / Software Engineer
Commented:
Hi,

You can use 7zip and add all pdf files to a password encrypted zipfile.

https://www.7-zip.org/download.html

And remember. Send the zipfile and password in a separate emails or better email and sms.

Regards,
    Tomas Helgi
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
Hi Uma,

Here's a five-minute EE video Micro Tutorial explaining how to do it with free software:
How to password-protect a PDF with free software - PDF-XChange Editor

The free version of that software has many other very nice features. Here are two more five-minute EE video Micro Tutorials showing a couple of them:

How to rotate pages in a PDF with free software - PDF-XChange Editor
How to OCR pages in a PDF with free software - PDF-XChange Editor

Regards, Joe
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
Hi Uma,

After writing my initial post, I started writing an update to it with another idea, i.e., to pack all of the files into a ZIP file and put a password on the ZIP file. An excellent free product to do that is 7-Zip:
7-Zip

For extra protection, you can use both methods, i.e., password-protect each PDF file and password-protect the ZIP file.

However, when I hit the Submit button on my initial post, I saw that Tomas already came up with the 7-Zip idea, but I figured that since I wrote this, I'll post it, anyway, if for no other reason than to say it's a good idea. :) Regards, Joe

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