Debenu Quick PDF Library - PDF SDK Community Forum : Convert PDF with password to Image http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 17:08:26 +0000 Wed, 02 May 2012 15:42:53 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=2239 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Convert PDF with password to Image : Wayne,It is safe to always cal...]]> http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9548.html#9548 Author: AndrewC
Subject: 2239
Posted: 02 May 12 at 3:42PM

Wayne,

It is safe to always call QP.SetAdvancePassword("")  before calling QP.LoadFromFile(), even for PDF files without a password.  You should check the return value from LoadFromFile just to be sure.  If the password is not correct then it will return 2 and the file will not be loaded and the SelectedDocument will not be updated.  Remember that QPL always maintains at least one open document in memory at all times.  When QPL is initialised then that document is a single blank page.

Andrew.
]]> Wed, 02 May 2012 15:42:53 +0000 http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9548.html#9548 <![CDATA[Convert PDF with password to Image : That did it. THANKS.Just for...]]> http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9531.html#9531 Author: waynefulcher
Subject: 2239
Posted: 26 Apr 12 at 2:39PM

That did it. THANKS.
 
Just for future reference. If a PDF has a password like that and I don't know what it is so I load it using SetAdvancePassword('') then what should I expect not to work?
Would it just be the SaveToFile() method(s) that dont work?
 
]]> Thu, 26 Apr 2012 14:39:25 +0000 http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9531.html#9531 <![CDATA[Convert PDF with password to Image : In 7.xx you need to call QP.Se...]]> http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9527.html#9527 Author: AndrewC
Subject: 2239
Posted: 26 Apr 12 at 1:12PM


In 7.xx you need to call QP.SetAdvancePassword(""); before calling QP.LoadFromFile()

The "" is an empty string.

It is safe to use this before an LoadFromFile call.

Andrew.


]]> Thu, 26 Apr 2012 13:12:30 +0000 http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9527.html#9527 <![CDATA[Convert PDF with password to Image : I have read many posts here...]]> http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9510.html#9510 Author: waynefulcher
Subject: 2239
Posted: 19 Apr 12 at 3:23PM

I have read many posts here and cant seem to find anything quit like the problem I have.
I have a situation where I have a PDF file that appears to have a password (which I do not know).
I am able to open the PDF with say Adobe Reader and view it with no problems and I can print it with no problems. It never ask me for a password either. What I am trying to do in my Delphi 7 app is simply open the PDF with QuickPDF and render a page to an image file.
 
Of course I am getting an exception when trying to call LoadFromFile() ; I am on version 7.26. There is no specific message in the exception.
 
So to ask simply, is there a way to open a secure pdf if you dont know the password and render the page to an image, not to modify the pdf?
 
Thanks
Wayne
 
]]> Thu, 19 Apr 2012 15:23:58 +0000 http://www.quickpdf.org/forum/convert-pdf-with-password-to-image_topic2239_post9510.html#9510