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Compressing JPEG images
Last update:
May 18, 2026
To reduce the size of large files, you can convert a JPEG file to a lower quality image by using the write action of the cfimage tag. Specify a value between 0 (low) and 1 (high) for the quality attribute, as the following example shows:
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" action="write"
destination="jeff05_lq.jpg" quality="0.5" overwrite="yes">You can perform the same operation by using the ImageWrite function:
<cfset myImage=ImageNew("jeff05.jpg")>
<cfset ImageWrite(myImage,"jeff05_lq.jpg","0.5")>
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