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K
Kastion2K
Participating Frequently
August 16, 2011
Answered

PDFs - Watermarking & Locking Content

  • August 16, 2011
  • 1 reply
  • 2145 views

Running:

  • Windows Server 2003 R2
  • Coldfusion 9 (Developer Edition currently)
  • IIS v6.0
  • MySQL

I have 2 questions regarding PDFs.

1) Will the watermarking not work in developer edition because of the Adobe watermark that is already there or am I doing it wrong?

<cfpdf action="addwatermark" source="reports/#FileName#" image="text.tiff"
    destination="c:\Inetpub\wwwroot\admin\reports\#FileName#" overwrite="yes">




2) Is there any way to lock down a PDF file? I'm writing tables of text and I want to make it so users can't select the text, is this possible?
    This topic has been closed for replies.
    Correct answer -__cfSearching__-
    You were right, the watermarking does work. I tried it with a gigantic image and it only shows around the edges of the page. The Coldfusion Developer Edition watermark is a large white rectangle that takes almost all the page, and adding a watermark places it under the existing watermark.
    EDIT:
    Using foreground="yes" lets you show the watermark on top of the Adobe watermark.

    The Coldfusion Developer Edition watermark is a large
    white rectangle 
    Oh yeah, I forgot about the big white rectangle issues  Any difference if you use foreground=true?
    1 reply
    -
    -__cfSearching__-
    Inspiring
    August 17, 2011
    source="reports/#FileName#" image="text.tiff"
    No, it works even under the developer edition. Perhaps one of your paths is off?=. Have you tried using absolute file paths?
    2) Is there any way to lock down a PDF file? I'm writing
    tables of text and I want to make it so users can't select
    the text, is this possible?
    Cfpdf allows you to disable certain features like copying by using action="protect". See the "permissions" section of the documentation for a complete listing. Just keep in mind these settings are not bullet proof. A determined user can find a way around such restrictions. 
    http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec22c24-7995.html
    K
    Kastion2KAuthor
    Participating Frequently
    August 17, 2011
    Thanks for the help, the link you provided answered all the questions I had concerning PDF protections.
    I am still having problems with the watermarking. I used absolute pathing and still no dice. Here's the code I'm using, that I took a snippet of from a tutorial I can't find at the moment.
    <cffile action="write" output="#HOLPDF#" file="c:\Inetpub\wwwroot\admin\reports\#FileName#">
    <!--- Create a blank image that is 500 pixels square. --->
    <cfset myImage=ImageNew("",500,500)>
    <!--- Set the background color for the image to white. --->
    <cfset ImageSetBackgroundColor(myImage,"white")>
    <!---Clear the rectangle specified on myImage and apply the background color. --->
    <cfset ImageClearRect(myImage,0,0,500,500)>
    <!--- Turn on antialiasing. --->
    <cfset ImageSetAntialiasing(myImage)>
    <!--- Draw the text. ---> 
    <cfset attr=StructNew()>
    <cfset attr.size=50>
    <cfset attr.style="bold">
    <cfset attr.font="Verdana">
    <cfset ImageSetDrawingColor(myImage,"blue")>
    <cfset ImageDrawText(myImage,"IPSUMDIPSUM",100,250,attr)>
    <!--- Write the text image to a file. --->
    <cfimage action="write" source="#myImage#" destination="text.tiff" overwrite ="yes">
    <!--- Use the text image as a watermark in the PDF document. --->
    <cfpdf action="addwatermark" source="c:\Inetpub\wwwroot\admin\reports\#FileName#" image="c:\Inetpub\wwwroot\admin\text.tiff"
        destination="c:\Inetpub\wwwroot\admin\reports\#FileName#" overwrite="yes">
    K
    Kastion2KAuthor
    Participating Frequently
    August 17, 2011
    You were right, the watermarking does work. I tried it with a gigantic image and it only shows around the edges of the page. The Coldfusion Developer Edition watermark is a large white rectangle that takes almost all the page, and adding a watermark places it under the existing watermark.
    EDIT:
    Using foreground="yes" lets you show the watermark on top of the Adobe watermark.
    
        
                                                
    
        
    
    
    

            
    
                                        
    
            
                        
    
                                                                                                            
            

    

    

    

        
    
                    
    
    
    
    

    

    
    
    

                                        
    
                                                        
    
            
        
    
    

    

    

                                    
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