I want to share by email a secured PDF that cannot be printed or forwarded to anyone else. I currently use PDFPenPro. I know I can secure a PDF from changes but is it possible to create one that cannot be re-shared by email or printed? (though I suspect screen shots could be taken).
I’m guessing not but I thought I’d ask. Thanks!
I don’t know of a way to prevent sharing any kind of file once it leaves your possession.
“If you’re working with sensitive information, you have to protect it. Learn how to easily encrypt with password and apply permissions to PDF files to prevent copying, changing, or printing your PDFs.”
I think I found a possible solution based on a relatively new feature of Gmail. I did not realize this was possible. I’m posting the support page link as this may be helpful to others.
I’m going to test this with my EA before using with anyone else.
https://support.google.com/mail/answer/7674059?co=GENIE.Platform%3DDesktop&hl=en
Note the comment about how the reader can screen shot the document even with your permissions set to secure it.
if truly so sensitive to have these google controls, may be best to think thru if really good enough.
Yes, screen shots are a problem.
I should add that using another email client still keeps the email and attachment secure.
Has this changed?
Also: Confidential Mode doesn’t work with attachments. If you attach something to the message and try to send using Confidential Mode, you’ll be prompted to choose between the attachment and Confidential Mode.
Source: Computerworld
I just tested it an hour ago. Sending an attachment worked perfectly. My EA could read the attachment but could not print, download, change, or forward it. I also tested it in an email client (Apple Mail). One gets a link to gmail web and the same restrictions apply.
I know it is not absolutely secure—but pretty good. It appears to be good enough for my purposes. Obviously, someone could screen shot a 40 page document if they like but in that case I have a bigger problem with which to deal. I basically wanted someone to review a confidential document but not be able to download, print, forward or change it. Confidential Mode appears to accomplish that. 
Hope you don’t mind me asking (since it’s off-topic), but English is not my native language and I have never seen the abbreviation EA before.
What’s an EA?
No problem at all. EA is Executive Assistant. 
FWIW, I’m a 48-year-old USA-born native English speaker, and I had no idea what EA meant either (other than a video game company, but I was pretty sure that wasn’t it, given the context).
My bad, I should have written it out since EA could stand for a lot of things!