Topaz DeJPEG
Topaz DeJPEG
Topaz DeJPEG free download for Mac

Topaz DeJPEG

Version 4.0.2

Increase the image quality of your JPEG photos.

Topaz DeJPEG overview

Topaz DeJPEG gives you the ability to improve the quality of your JPEG images. DeJPEG eliminates JPEG compression artifacts, which occur as a result of saving an image in the JPEG format, allowing your image detail and color to be restored. DeJPEG's underlying algorithm examines the entire image and removes all artifacts while preserving detail and enhancing an image's natural qualities. It targets all aspects of JPEG quality including sharpness, noise, and color integrity. The sophisticated tools in Topaz DeJPEG ensure that any processed JPEG image appears clear, clean, and crisp. Topaz DeJPEG is simply the best way to make the most out of your compressed JPEG photos.


  • Ability to restore color and detail to image features.
  • Intelligent color and line enhancement.
  • Preserves image integrity.
  • Eliminates typical JPEG image distortions that degrade image quality.
Optimal high-quality results
Use DeJPEG to ensure that any batch of high-quality JPEGs look just as good as if they were shot it in RAW.

Perfect for Web-ready images
Designers who work with web images find DeJPEG invaluable for rescuing otherwise unusable pieces of stock photography.

Sharpen color edges
One of the most popular uses of DeJPEG is to counteract unwanted color "bleeding" and information loss that occurs even in high-quality JPEG images. Topaz DeJPEG's color sharpening and edge restoration tools actually reconstruct softened color edges, bringing out previously unseen image details and restoring sharpness to damaged edges. This is highly useful in many Photoshop tasks like masking and also makes the image look much cleaner in general.

Turns low-quality shots into high-quality keepers
Point-and-shoot and camera-phone users take advantage of DeJPEG's extensive artifact reduction capabilities to enhance the quality of their snapshots.

What’s new in version 4.0.2

Updated on Mar 28 2014

Version 4.0.2:

Note: Although Finder indicates that this is version none, the developer refers to it as version 4.0.2.

  • Auto updater. Get software updates instantly.
  • New user interface. Includes the ability to easily expand and collapse side panels and parameter tabs for an adjustable workspace.
  • Snap / Recall buttons. Save up to 99 snapshot settings for comparison.
  • Preset enable / disable option. Option to enable or disable the preset preview processing at program startup.
  • Preset navigation. Use the up / down arrow keys to navigate the preset list and display the selected preset thumbnail (in preset preview window). Use the return (Enter) key to apply the currently selected preset.
  • Enable / disable tool tips. Option to enable or disable the pop up tool tips.
  • New presets layout. The new preset format features its own preview window.
  • Quick slider reset allows you to double-click on the slider name to easily reset default slider values.
  • Larger image abilities. Significant stability increase for processing large images.





44.8 MB

Developer’s website



App requirements

  • Intel 64
  • Intel 32
  • Mac OS X 10.6.8 or later
  • One of the following:
  • Adobe Photoshop CS3 or later
  • Adobe Photoshop Elements 6 or later
  • Adobe Photoshop Lightroom 2 or later
  • Apple Aperture 2 or later
  • Apple iPhoto (all versions)
  • Corel PaintShop Pro or PhotoImpact
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Dec 18 2016
Dec 18 2016
Version: 4.0.2
DeJPEG does what it claims to do, but it only makes a difference with JPGs that have been heavily compressed. It tested it on a dozen or so images. It really made a difference on illustrations that were saved in JPG format (instead of PNG), things like drawings, line art and logos. DeJPEG did a good job at removing the artifacts along edges and smoothing out the blotches in areas of uniform colour. It also did a good job on some highly-compressed JPGs that showed artifacts, particularly in areas like sky with clouds, but didn't do as well in areas with more detail where it ended up softening things too much. JPGs that were saved in a digital camera on the "Fine" or least compressed setting generally don't exhibit artifacting, and I found no benefit in running them through DeJPEG. So the bottom line is that if you have a lot of highly-compressed photos or illustrations saved in JPG format, then DeJPEG would be worth having as an additional tool in Photoshop.