Skip to main content

Merging password protected PDF files in ColdFusion

In ColdFusion, CFPDF tag can be used to perform several PDF related operations such as adding a watermark, generating thumbnails, deleting pages, merging documents and securing a PDF with password. Today I wanted to merge all my bank statements into a single PDF document, such that only the first page from each document containing the summary of the statement is present in the merged document.

To merge these documents, one can use CFPDF tag with the action attribute set to 'merge'. However, the PDF files that I was trying to merge were password protected. To merge password protected files one can use the CFPDFPARAM tag within a CFPDF tag and provide password there:
 <cfpdf action="merge"  
     destination="merged.pdf"  
     overwrite="yes">  
      <cfpdfparam source="pdf1.pdf"  
            password="#password#"  
            pages="1">  
      <cfpdfparam source="pdf2.pdf"  
            password="#password#"  
            pages="1">  
      .
      .
      .
      .
 </cfpdf>  

As mentioned earlier, the merged document should have only the first page from each document. The CFPDFPARAM tag with the pages attribute set to '1' would consider only the first page while merging. One can also specify a range of pages with "1-5" or a list of pages separated with a comma "1,5,7".

The resultant merged document was not password protected. To secure a PDF file with a password, one can use the CFPDF tag with the action attribute set to 'protect':
 <cfpdf action="protect"  
     source="merged.pdf"  
     newuserpassword="test">  

Comments

  1. This comment has been removed by the author.

    ReplyDelete
  2. I don't know how that works and I'm glad you shared this information with us. Now I know how to merge them in ColdFusion.

    long island document scanning

    ReplyDelete

Post a Comment

Popular posts from this blog

File upload and Progress events with HTML5 XmlHttpRequest Level 2

The XmlHttpRequest Level 2 specification adds several enhancements to the XmlHttpRequest object. Last week I had blogged about cross-origin-requests and how it is different from Flash\Silverlight's approach .  With Level 2 specification one can upload the file to the server by passing the file object to the send method. In this post I'll try to explore uploading file using XmlHttpRequest 2 in conjunction with the progress events. I'll also provide a description on the new HTML5 tag -  progress which can be updated while the file is being uploaded to the server. And of course, some ColdFusion code that will show how the file is accepted and stored on the server directory.

Server sent events with HTML5 and ColdFusion

There are several ways to interact with the server apart from the traditional request\response and refresh all protocol. They are polling, long polling, Ajax and Websockets ( pusherapp ). Of all these Ajax and Websockets have been very popular. There is another way to interact with the server such that the server can send notifications to the client using Server Sent Events (SSE) . SSE is a part of HTML5 spec:  http://dev.w3.org/html5/eventsource/

Adding beforeRender and afterRender functions to a Backbone View

I was working on a Backbone application that updated the DOM when a response was received from the server. In a Backbone View, the initialize method would perform some operations and then call the render method to update the view. This worked fine, however there was scenario where in I wanted to perform some tasks before and after rendering the view. This can be considered as firing an event before and after the function had completed its execution. I found a very simple way to do this with Underscore's wrap method.