How do I white something out?

The PDF-XChange Viewer for End Users
+++ FREE +++

Moderators: TrackerSupp-Daniel, Tracker Support, Vasyl-Tracker Dev Team, Sean - Tracker, Paul - Tracker Supp, Chris - Tracker Supp, Tracker Supp-Stefan, Ivan - Tracker Software

Post Reply
Dave@DBRealty.com
User
Posts: 2
Joined: Mon Aug 13, 2012 7:41 pm

How do I white something out?

Post by Dave@DBRealty.com » Mon Aug 13, 2012 7:46 pm

Hi,

Can I hide something in a pdf by overlaying an opaque white rectangle? I don't see how to do it.

Thanks.

Dave

User avatar
Paul - Tracker Supp
Site Admin
Posts: 4935
Joined: Wed Mar 25, 2009 10:37 pm
Location: Chemainus, Canada
Contact:

Re: How do I white something out?

Post by Paul - Tracker Supp » Mon Aug 13, 2012 7:52 pm

Hi Dave,

you certainly can do that. This article will explain how: http://www.tracker-software.com/knowled ... F-document

hth
_________________
If posting files to this forum - you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded - thank you.

Best regards

Paul O'Rorke
Tracker Support North America
http://www.tracker-software.com

denzil
User
Posts: 14
Joined: Thu Jul 05, 2012 9:53 am

Re: How do I white something out?

Post by denzil » Wed Aug 15, 2012 8:00 am

Just be careful, as the original content is still there underneath. If the recipient is just using a plain viewer it will be OK. If they have full PDF editing software then they would be able to find and delete the blank text box see what is underneath (if they could be bothered to look for it). It depends how important the information is and how secure you need it to be. If you want to be sure then hide the content, then export as an image, then save the image back to a new PDF.

User avatar
Tracker Supp-Stefan
Site Admin
Posts: 13428
Joined: Mon Jan 12, 2009 8:07 am
Location: London
Contact:

Re: How do I white something out?

Post by Tracker Supp-Stefan » Wed Aug 15, 2012 10:14 am

Thanks for the tips denzil!

Yes that is indeed the correct way to fully remove the hidden content if the information hidden is sensitive/restricted.

And you can then OCR the new PDF file so that it's contents is still searchable :)

Cheers,
Stefan

Dave@DBRealty.com
User
Posts: 2
Joined: Mon Aug 13, 2012 7:41 pm

Re: How do I white something out?

Post by Dave@DBRealty.com » Wed Aug 15, 2012 10:15 am

Good to know. Thanks for explaining.

User avatar
Tracker Supp-Stefan
Site Admin
Posts: 13428
Joined: Mon Jan 12, 2009 8:07 am
Location: London
Contact:

Re: How do I white something out?

Post by Tracker Supp-Stefan » Wed Aug 15, 2012 10:24 am

:)

ZoNi
User
Posts: 67
Joined: Wed Mar 24, 2010 8:23 am
Contact:

Re: How do I white something out?

Post by ZoNi » Tue Aug 28, 2012 11:52 am

denzil wrote:If you want to be sure then hide the content, then export as an image, then save the image back to a new PDF.
It is enough to "print" your PDF with hidden content to PDF with some PDF virtual printer (such as PDFCreator). (only 4 times "PDF"? :D )

User avatar
Tracker Supp-Stefan
Site Admin
Posts: 13428
Joined: Mon Jan 12, 2009 8:07 am
Location: London
Contact:

Re: How do I white something out?

Post by Tracker Supp-Stefan » Tue Aug 28, 2012 12:26 pm

Not all of us are native English speakers ZoNi ;)

Cheers,
Stefan

Post Reply