Thumbnail images

The following example generates thumbnail images from pages in a PDF document and links the thumbnail images to the pages in the PDF document:

 

<h3>PDF Thumbnail Demo</h3>

 

<!--- Create a variable for the name of the PDF document. --->
<cfset mypdf="myBook">
<cfset thisPath=ExpandPath(".")>

 

<!--- Use the getInfo action to retrieve the total page count for the PDF document. --->
<cfpdf action="getInfo" source="#mypdf#.pdf" name="PDFInfo">
<cfset pageCount="#PDFInfo.TotalPages#">

 

<!--- Generate a thumbnail image for each page in the PDF source document,
create a directory (if it doesn't already exist) in the web root that is a concatenation of the

PDF source name and the word "thumbnails", and save the thumbnail images in that directory. --->

<cfpdf action="thumbnail" source="#mypdf#.pdf" overwrite="yes" destination="#mypdf#_thumbnails" scale=60>

 

<!--- Loop through the images in the thumbnail directory and generate a link from

each image to the corresponding page in the PDF document. --->
<cfloop index="LoopCount" from ="1" to="#pageCount#" step="1">
 <cfoutput>

  <!--- Click the thumbnail image to navigate to the page in the PDF document. --->
  <a href="#mypdf#.pdf##page=#LoopCount#" target="_blank">  <img src="#mypdf#_thumbnails/#mypdf#_page_#LoopCount#.jpg"></a>

 </cfoutput>
</cfloop>