M
Jun 05, 2013

How to protect and lock a PDF with password before sending through email?

Is there any way to password protect and lock a sensitive PDF file before sending as an attachment through email? I cannot afford Adobe acrobat pro and free primopdf didn’t work for me as well. Any help will be appreciated!

05/14/2016
With PDFEncrypt https://tr.im/EncryptPDF protect a PDF with both user/open and owner password protection.

You do not have to worry about having Adobe Reader or Adobe Acrobat because it work without Adobe Reader and Acrobat.
01/25/2016
Password does not work well since people can pass it around without your knowledge. A more simple and effective way is put a watermark on the attachment. I use this DodoShare secure email attachment gmail plugin and it takes care of it for me. Give it a try.
https://chrome.google.com/webstore/detail/docoshare-secure-attachme/nopoijcbmkhjclfcadaonjdmepgkabme
09/21/2015
In order to password protect a PDF file using Adobe Acrobat:

1. Click ‘File’ which is on the top horizontal toolbar.
2. Select ‘open’ by scrolling down the drop-down list.
3. With the help of the browser window, password-protect the file that you wish to select.
4. Go to the ‘Security’ tab in the properties dialogue box.
5. Select ‘Password Security’ in the top drop-down box instead of ‘No Security’.

Source : https://passwordprotectpdffile.com/how-to-password-protect-pdf-files/
05/16/2015
how do i lock my pdf file so as the recipient does not open to view
08/30/2015
You can try Adobe Acrobat Pro tool to lock your PDF files with password protection. Adobe Acrobat Pro has a built-in feature to lock PDF files as well as apply security restriction on them. For a detailed information on this topic, you can read this blog post: http://wordpress.semnaitik.com/2015/07/21/password-protect-pdf/

Hope the shared information would be useful.

Thanks and best regards.
10/15/2014
I was stuck in a fairly similar situation. I was also looking for something to password-protect my PDF document that I wanted to share with a small group of people. The tutorial/guide http://www.mypdfsolutions.com/how-to-protect-lock-pdf-file.html mentioned by the user "hancockt" helped me password-protect my pdf document. This small utility is very useful. I wasn't willing to buy Acrobat for this small task.

Note: One should encrypt PDF file with both open and permission password because there are many tools available on the internet to remove permission password.
y
09/03/2014

Recommend to use sfletter.com. It is a free email service with an option to protect PDF and JPEG files.

m
03/17/2014

I would not recommend online services in case if you want to password-protect your sensitive or confidential PDF files from reading as it would not be a smart thing to upload your sensitive PDF files over these unknown third-party servers.

 

if you have Microsoft Word 2013, follow the procedure on

www.howtogeek.com/124824/how-to-password-protect-pdf-files-in-word-2013/.

L
03/10/2014

i am using a free file encryption Prot-On, encrypt and decide who and when can access your documents.

 

You can try it http://www.prot-on.com

C
08/29/2013

You can try PDF unlocker software will help to unlock sensitive PDF File restriction.

 

Visit more information: http://www.adobe.pdf-unlocker.com/

k
08/27/2013

@Methew 

 

Can you please share your soluton. As i am also trying to make PDF password protected in SAP.

 

Please share you solution if it can help me ..

 

thanking you in advance.

06/16/2013
This article might be of use to you:

How to Lock PDF Files
http://www.ehow.com/how_5875867_lock-pdf-files.html
m
06/08/2013

I would like to add one more thing, one should protect PDF file with user or open as owner password is pretty much easy to crack.  

h
06/07/2013

You can ZIP the PDF file and protect the ZIP file. You can also try programs like NitroPDF and PDF Encrypt ( http://www.mypdfsolutions.com/how-to-protect-lock-pdf-file.html ) to set the password protection to your PDF file without Acrobat.

M
06/13/2013

Sorry for the delayed responce. Well it did the job for me. Program is good and it can password protect and lock a PDF file. Hope it's a strong protection which cannot be cracked. Thanks! 

10/15/2014

Thanks mate, it is very useful.
b
06/06/2013

You can use Adobe Acrobat IX to password protect PDFs if you use Outlook. Not sure if it will do the same for non-Office applications though.

M
06/13/2013

Thanks for the reply!

Answer this